81427240752
81,427,240,752 is an even composite number composed of seven prime numbers multiplied together.
81427240752 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of three hundred twenty divisors.
Prime factorization of 81427240752:
24 × 3 × 11 × 13 × 29 × 127 × 3221
(2 × 2 × 2 × 2 × 3 × 11 × 13 × 29 × 127 × 3221)See below for interesting mathematical facts about the number 81427240752 from the Numbermatics database.
Names of 81427240752
- Cardinal: 81427240752 can be written as Eighty-one billion, four hundred twenty-seven million, two hundred forty thousand, seven hundred fifty-two.
Scientific notation
- Scientific notation: 8.1427240752 × 1010
Factors of 81427240752
Divisors of 81427240752
- Number of divisors d(n): 320
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Complete list of divisors:
1 2 3 4 6 8 11 12 13 16 22 24 26 29 33 39 44 48 52 58 66 78 87 88 104 116 127 132 143 156 174 176 208 232 254 264 286 312 319 348 377 381 429 464 508 528 572 624 638 696 754 762 858 957 1016 1131 1144 1276 1392 1397 1508 1524 1651 1716 1914 2032 2262 2288 2552 2794 3016 3048 3221 3302 3432 3683 3828 4147 4191 4524 4953 5104 5588 6032 6096 6442 6604 6864 7366 7656 8294 8382 9048 9663 9906 11049 11176 12441 12884 13208 14732 15312 16588 16764 18096 18161 19326 19812 22098 22352 24882 25768 26416 29464 33176 33528 35431 36322 38652 39624 40513 41873 44196 47879 49764 51536 54483 58928 66352 67056 70862 72644 77304 79248 81026 83746 88392 93409 95758 99528 106293 108966 121539 125619 141724 143637 145288 154608 162052 167492 176784 186818 191516 199056 212586 217932 243078 251238 280227 283448 287274 290576 324104 334984 373636 383032 409067 425172 435864 460603 486156 502476 526669 560454 566896 574548 648208 669968 747272 766064 818134 850344 871728 921206 972312 1004952 1027499 1053338 1120908 1149096 1214317 1227201 1381809 1494544 1580007 1636268 1700688 1842412 1944624 2009904 2054998 2106676 2241816 2298192 2428634 2454402 2763618 3082497 3160014 3272536 3642951 3684824 4109996 4213352 4483632 4499737 4857268 4908804 5317871 5527236 6164994 6320028 6545072 7285902 7369648 8219992 8426704 8999474 9714536 9817608 10635742 11054472 11862943 12329988 12640056 13357487 13499211 14571804 15953613 16439984 17998948 19429072 19635216 21271484 22108944 23725886 24659976 25280112 26714974 26998422 29143608 31907226 35588829 35997896 40072461 42542968 47451772 49319952 53429948 53996844 58287216 58496581 63814452 71177658 71995792 80144922 85085936 94903544 106859896 107993688 116993162 127628904 130492373 142355316 154218259 160289844 175489743 189807088 213719792 215987376 233986324 255257808 260984746 284710632 308436518 320579688 350979486 391477119 462654777 467972648 521969492 569421264 616873036 641159376 701958972 782954238 925309554 935945296 1043938984 1233746072 1403917944 1565908476 1696400849 1850619108 2087877968 2467492144 2807835888 3131816952 3392801698 3701238216 5089202547 6263633904 6785603396 7402476432 10178405094 13571206792 20356810188 27142413584 40713620376 81427240752
- Sum of all divisors σ(n): 257743503360
- Sum of proper divisors (its aliquot sum) s(n): 176316262608
- 81427240752 is an abundant number, because the sum of its proper divisors (176316262608) is greater than itself. Its abundance is 94889021856
Bases of 81427240752
- Binary: 10010111101010111000100010111001100002
- Hexadecimal: 0x12F5711730
- Base-36: 11ENOD2O
Squares and roots of 81427240752
- 81427240752 squared (814272407522) is 6630395536484169525504
- 81427240752 cubed (814272407523) is 539894813630282671589995812139008
-
The
square root of 81427240752 is 285354.5877535527 -
The
cube root of 81427240752 is 4334.3426316361
Scales and comparisons
How big is 81427240752?- 81,427,240,752 seconds is equal to 2,589 years, 6 weeks, 6 days, 21 hours, 59 minutes, 12 seconds.
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To count from 1 to 81,427,240,752 would take you about five thousand, one hundred seventy-eight 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 81427240752 cubic inches would be around 361.2 feet tall.
Recreational maths with 81427240752
- 81427240752 backwards is 25704272418
- The number of decimal digits it has is: 11
- The sum of 81427240752's digits is 42
- More coming soon!
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