157388490
157,388,490 is an even composite number composed of six prime numbers multiplied together.
157388490 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 157388490:
2 × 32 × 5 × 72 × 89 × 401
(2 × 3 × 3 × 5 × 7 × 7 × 89 × 401)See below for interesting mathematical facts about the number 157388490 from the Numbermatics database.
Names of 157388490
- Cardinal: 157388490 can be written as One hundred fifty-seven million, three hundred eighty-eight thousand, four hundred ninety.
Scientific notation
- Scientific notation: 1.5738849 × 108
Factors of 157388490
Divisors of 157388490
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 89 90 98 105 126 147 178 210 245 267 294 315 401 441 445 490 534 623 630 735 801 802 882 890 1203 1246 1335 1470 1602 1869 2005 2205 2406 2670 2807 3115 3609 3738 4005 4010 4361 4410 5607 5614 6015 6230 7218 8010 8421 8722 9345 11214 12030 13083 14035 16842 18045 18690 19649 21805 25263 26166 28035 28070 35689 36090 39249 39298 42105 43610 50526 56070 58947 65415 71378 78498 84210 98245 107067 117894 126315 130830 176841 178445 196245 196490 214134 249823 252630 294735 321201 353682 356890 392490 499646 535335 589470 642402 749469 884205 1070670 1249115 1498938 1606005 1748761 1768410 2248407 2498230 3212010 3497522 3747345 4496814 5246283 7494690 8743805 10492566 11242035 15738849 17487610 22484070 26231415 31477698 52462830 78694245 157388490
- Sum of all divisors σ(n): 482568840
- Sum of proper divisors (its aliquot sum) s(n): 325180350
- 157388490 is an abundant number, because the sum of its proper divisors (325180350) is greater than itself. Its abundance is 167791860
Bases of 157388490
- Binary: 10010110000110001110110010102
- Hexadecimal: 0x9618ECA
- Base-36: 2LPDQI
Squares and roots of 157388490
- 157388490 squared (1573884902) is 24771136784480100
- 157388490 cubed (1573884903) is 3898691814092778374049000
-
The
square root of 157388490 is 12545.4569466401 -
The
cube root of 157388490 is 539.9136693265
Scales and comparisons
How big is 157388490?- 157,388,490 seconds is equal to 5 years, 1 day, 15 hours, 1 minute, 30 seconds.
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To count from 1 to 157,388,490 would take you about seven 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 157388490 cubic inches would be around 45 feet tall.
Recreational maths with 157388490
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