Numerical Words

There are several interesting observations that can be made about numbers,
as spelled out in English words. Here are a few:

Miscellaneous Facts ~ First Appearance of Letters ~ Roman Numerals


Miscellaneous Facts

BulletEight is the first number alphabetically. Zero is the last.
BulletFour is the only number that, spelled out, has as many letters.
BulletThe only integer names with no repeated letters are zero, one, two, four, five, six, eight, ten, forty, forty-six, sixty, sixty-one, sixty-four, eighty, eighty-four and five thousand.
BulletThe shortest names for numbers are one, two, six and ten. The longest names for numbers have 758 letters each, and there are 984, 770, 902, 183, 611, 232, 881 (or 344) such numbers. the smallest of these is 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373, 373 and the largest of these is 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878, 878.
BulletForty is the only number whose letters are in alphabetical order. One is the only number whose letters are in reverse alphabetical order. First also has its letters in alphabetical order.
BulletThe smallest number whose name uses the five vowels a, e, i, o, u in order is 1084 (one thousand eighty-four)
BulletThe smallest number whose name uses the five vowels a, e, i, o, u in any order is 1005 (one thousand five).
BulletThe smallest number whose name uses the six vowels a, e, i, o, u, y in order is 1, 000, 000, 000, 008, 020 (one quadrillion eight thousand twenty)
BulletThe smallest number whose name uses the six vowels a, e, i, o, u, y (in any order) is 1025 (one thousand twenty-five)
BulletThe largest number whose name uses only one distinct vowel is seventeen (using only e)
BulletEighty-six, nine letters long, is the longest number that is normally typed using strictly alternating hands (ignoring the hyphen).
BulletThe word interchangeability contains the letters to form more numbers than any other word. Its letters can form the words three, eight, nine, ten, thirteen, thirty-nine, eighty, eighty-nine, ninety and ninety-eight.
BulletZenzizenzizenzic (eighth power of a number) has more z's than any other word in English.
 

First Appearances of Letters

BulletOne thousand is the first number that, when spelled out, contains an a. (One hundred and one if you count the 'and'.)
BulletOne billion is the first number that contains a b.
BulletOne octillion is the first number that contains a c.
BulletOne hundred is the first number that contains a d.
BulletZero is the first number that contains an e. Starting from one, it's one.
BulletFour is the first number that contains an f.
BulletEight is the first number that contains a g.
BulletThree is the first number that contains an h.
BulletFive is the first number that contains an i.
BulletThe letters J and k do not appear in the spelling of any cardinal number.
BulletEleven is the first number that contains an l.
BulletOne million is the first number that contains an m.
BulletOne is the first number that contains an n.
BulletZero is the first number that contains an o. starting from one, it's one.
BulletOne septillion is the first number that contains a p.
BulletOne quadrillion is the first number that contains a q.
BulletZero is the first number that contains an r. Starting from one, it's three.
BulletSix is the first number that contains an s.
BulletTwo is the first number that contains a t.
BulletFour is the first number that contains a u.
BulletFive is the first number that contains a v.
BulletTwo is the first number that contains a w.
BulletSix is the first number that contains an x.
BulletTwenty is the first number that contains a y.
BulletZero is the first and only number that contains a z. (One zillion is not a real number.)

BulletSeven is the first number not to contain any letter for the first time.
BulletOne octillion, the first number containing a c, is the largest number to contain any letter for the first time.

Roman Numerals

BulletThe first Roman numeral alphabetically is C (100); the last is XXXVIII (38). The first odd Roman nemeral alphabetically is CCCI (301); the last is XXXVII (37).
BulletMIX is the longest English word that is also a valid number in Roman numerals.
BulletDIVIDIVI (a tropical American tree) is the longest word composed solely of Roman numeral letters. Some other such words of four or more letters are CIMICIC (a yellow oil), CIMICIC (an insect), CIVIC, CIVIL, CIXIID (one of the Cixiidae, a family of insects of the order Homoptera), DILL, DILLI (a bag or basket also called a dilly bag), DIXID (a type of midge), IDIC (pertaining to or consisting of ids), ILICIC, IMID (variant spelling of imide), IMIDIC (related to an imide), IMMI (unit of measure formerly used in Switzerland = 1.51) IMMIX, IXIL (a Mayan tribe), LIL, LIVID, MIDI, MILD, MILL, MIMI (girl's name), CLIM (dialect word, past tense of climb), MIMIC, VILI (a brother of Odin in Norse mythology), VILL, VILLI (plural of villus) and VIVID.
BulletBACILLICIDIC (destructive to bacilli) and MILLIMILLINARY (correct within a millionth part) have the longest uninterrupted string of Roman numeral letters in a word (10).
BulletAmong words consisting only of Roman numeral letters, the words with highest total value are MIMIC (2,102) and IMMIX (2,012).

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