90243972
90,243,972 is an even composite number composed of five prime numbers multiplied together.
90243972 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 90243972:
22 × 32 × 7 × 133 × 163
(2 × 2 × 3 × 3 × 7 × 13 × 13 × 13 × 163)See below for interesting mathematical facts about the number 90243972 from the Numbermatics database.
Names of 90243972
- Cardinal: 90243972 can be written as Ninety million, two hundred forty-three thousand, nine hundred seventy-two.
Scientific notation
- Scientific notation: 9.0243972 × 107
Factors of 90243972
Divisors of 90243972
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 163 169 182 234 252 273 326 338 364 468 489 507 546 652 676 819 978 1014 1092 1141 1183 1467 1521 1638 1956 2028 2119 2197 2282 2366 2934 3042 3276 3423 3549 4238 4394 4564 4732 5868 6084 6357 6591 6846 7098 8476 8788 10269 10647 12714 13182 13692 14196 14833 15379 19071 19773 20538 21294 25428 26364 27547 29666 30758 38142 39546 41076 42588 44499 46137 55094 59332 61516 76284 79092 82641 88998 92274 110188 133497 138411 165282 177996 184548 192829 247923 266994 276822 330564 358111 385658 495846 533988 553644 578487 716222 771316 991692 1074333 1156974 1432444 1735461 2148666 2313948 2506777 3222999 3470922 4297332 5013554 6445998 6941844 7520331 10027108 12891996 15040662 22560993 30081324 45121986 90243972
- Sum of all divisors σ(n): 284152960
- Sum of proper divisors (its aliquot sum) s(n): 193908988
- 90243972 is an abundant number, because the sum of its proper divisors (193908988) is greater than itself. Its abundance is 103665016
Bases of 90243972
- Binary: 1010110000100000011100001002
- Hexadecimal: 0x5610384
- Base-36: 1HQ8P0
Squares and roots of 90243972
- 90243972 squared (902439722) is 8143974482336784
- 90243972 cubed (902439723) is 734944605152715229866048
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The
square root of 90243972 is 9499.6827315441 -
The
cube root of 90243972 is 448.5450490351
Scales and comparisons
How big is 90243972?- 90,243,972 seconds is equal to 2 years, 45 weeks, 1 day, 11 hours, 46 minutes, 12 seconds.
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To count from 1 to 90,243,972 would take you about four 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 90243972 cubic inches would be around 37.4 feet tall.
Recreational maths with 90243972
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