121981392
121,981,392 is an even composite number composed of five prime numbers multiplied together.
121981392 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 121981392:
24 × 32 × 13 × 17 × 3833
(2 × 2 × 2 × 2 × 3 × 3 × 13 × 17 × 3833)See below for interesting mathematical facts about the number 121981392 from the Numbermatics database.
Names of 121981392
- Cardinal: 121981392 can be written as One hundred twenty-one million, nine hundred eighty-one thousand, three hundred ninety-two.
Scientific notation
- Scientific notation: 1.21981392 × 108
Factors of 121981392
Divisors of 121981392
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 17 18 24 26 34 36 39 48 51 52 68 72 78 102 104 117 136 144 153 156 204 208 221 234 272 306 312 408 442 468 612 624 663 816 884 936 1224 1326 1768 1872 1989 2448 2652 3536 3833 3978 5304 7666 7956 10608 11499 15332 15912 22998 30664 31824 34497 45996 49829 61328 65161 68994 91992 99658 130322 137988 149487 183984 195483 199316 260644 275976 298974 390966 398632 448461 521288 551952 586449 597948 781932 797264 847093 896922 1042576 1172898 1195896 1563864 1694186 1793844 2345796 2391792 2541279 3127728 3388372 3587688 4691592 5082558 6776744 7175376 7623837 9383184 10165116 13553488 15247674 20330232 30495348 40660464 60990696 121981392
- Sum of all divisors σ(n): 389365704
- Sum of proper divisors (its aliquot sum) s(n): 267384312
- 121981392 is an abundant number, because the sum of its proper divisors (267384312) is greater than itself. Its abundance is 145402920
Bases of 121981392
- Binary: 1110100010101001001110100002
- Hexadecimal: 0x74549D0
- Base-36: 20MHG0
Squares and roots of 121981392
- 121981392 squared (1219813922) is 14879459994257664
- 121981392 cubed (1219813923) is 1815017242307861861388288
-
The
square root of 121981392 is 11044.5186404841 -
The
cube root of 121981392 is 495.9423493521
Scales and comparisons
How big is 121981392?- 121,981,392 seconds is equal to 3 years, 45 weeks, 4 days, 19 hours, 43 minutes, 12 seconds.
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To count from 1 to 121,981,392 would take you about five years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 121981392 cubic inches would be around 41.3 feet tall.
Recreational maths with 121981392
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