121257990
121,257,990 is an even composite number composed of six prime numbers multiplied together.
121257990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 121257990:
2 × 32 × 5 × 7 × 29 × 6637
(2 × 3 × 3 × 5 × 7 × 29 × 6637)See below for interesting mathematical facts about the number 121257990 from the Numbermatics database.
Names of 121257990
- Cardinal: 121257990 can be written as One hundred twenty-one million, two hundred fifty-seven thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.2125799 × 108
Factors of 121257990
Divisors of 121257990
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 29 30 35 42 45 58 63 70 87 90 105 126 145 174 203 210 261 290 315 406 435 522 609 630 870 1015 1218 1305 1827 2030 2610 3045 3654 6090 6637 9135 13274 18270 19911 33185 39822 46459 59733 66370 92918 99555 119466 139377 192473 199110 232295 278754 298665 384946 418131 464590 577419 597330 696885 836262 962365 1154838 1347311 1393770 1732257 1924730 2090655 2694622 2887095 3464514 4041933 4181310 5774190 6736555 8083866 8661285 12125799 13473110 17322570 20209665 24251598 40419330 60628995 121257990
- Sum of all divisors σ(n): 372790080
- Sum of proper divisors (its aliquot sum) s(n): 251532090
- 121257990 is an abundant number, because the sum of its proper divisors (251532090) is greater than itself. Its abundance is 130274100
Bases of 121257990
- Binary: 1110011101001000000000001102
- Hexadecimal: 0x73A4006
- Base-36: 206Z9I
Squares and roots of 121257990
- 121257990 squared (1212579902) is 14703500138840100
- 121257990 cubed (1212579903) is 1782916872800471457399000
-
The
square root of 121257990 is 11011.7205740065 -
The
cube root of 121257990 is 494.9600212585
Scales and comparisons
How big is 121257990?- 121,257,990 seconds is equal to 3 years, 44 weeks, 3 days, 10 hours, 46 minutes, 30 seconds.
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To count from 1 to 121,257,990 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 121257990 cubic inches would be around 41.2 feet tall.
Recreational maths with 121257990
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