81372015120
81,372,015,120 is an even composite number composed of seven prime numbers multiplied together.
81372015120 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 81372015120:
24 × 3 × 5 × 11 × 53 × 71 × 8191
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 53 × 71 × 8191)See below for interesting mathematical facts about the number 81372015120 from the Numbermatics database.
Names of 81372015120
- Cardinal: 81372015120 can be written as Eighty-one billion, three hundred seventy-two million, fifteen thousand, one hundred twenty.
Scientific notation
- Scientific notation: 8.137201512 × 1010
Factors of 81372015120
Divisors of 81372015120
- Number of divisors d(n): 320
-
Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 53 55 60 66 71 80 88 106 110 120 132 142 159 165 176 212 213 220 240 264 265 284 318 330 355 424 426 440 528 530 568 583 636 660 710 781 795 848 852 880 1060 1065 1136 1166 1272 1320 1420 1562 1590 1704 1749 2120 2130 2332 2343 2544 2640 2840 2915 3124 3180 3408 3498 3763 3905 4240 4260 4664 4686 5680 5830 6248 6360 6996 7526 7810 8191 8520 8745 9328 9372 11289 11660 11715 12496 12720 13992 15052 15620 16382 17040 17490 18744 18815 22578 23320 23430 24573 27984 30104 31240 32764 34980 37488 37630 40955 41393 45156 46640 46860 49146 56445 60208 62480 65528 69960 75260 81910 82786 90101 90312 93720 98292 112890 122865 124179 131056 139920 150520 163820 165572 180202 180624 187440 196584 206965 225780 245730 248358 270303 301040 327640 331144 360404 393168 413930 434123 450505 451560 491460 496716 540606 581561 620895 655280 662288 720808 827860 868246 901010 903120 982920 993432 1081212 1163122 1241790 1302369 1351515 1441616 1655720 1736492 1744683 1802020 1965840 1986864 2162424 2170615 2326244 2483580 2604738 2703030 2907805 3311440 3472984 3489366 3604040 4324848 4341230 4652488 4775353 4967160 5209476 5406060 5815610 6397171 6511845 6945968 6978732 7208080 8682460 8723415 9304976 9550706 9934320 10418952 10812120 11631220 12794342 13023690 13957464 14326059 17364920 17446830 19101412 19191513 20837904 21624240 23262440 23876765 25588684 26047380 27914928 28652118 30822733 31985855 34729840 34893660 38202824 38383026 46524880 47753530 51177368 52094760 57304236 61645466 63971710 69787320 71630295 76405648 76766052 92468199 95507060 95957565 102354736 104189520 114608472 123290932 127943420 139574640 143260590 153532104 154113665 184936398 191014120 191915130 229216944 246581864 255886840 286521180 307064208 308227330 339050063 369872796 382028240 383830260 462340995 493163728 511773680 573042360 616454660 678100126 739745592 767660520 924681990 1017150189 1146084720 1232909320 1356200252 1479491184 1535321040 1695250315 1849363980 2034300378 2465818640 2712400504 3390500630 3698727960 4068600756 5085750945 5424801008 6781001260 7397455920 8137201512 10171501890 13562002520 16274403024 20343003780 27124005040 40686007560 81372015120
- Sum of all divisors σ(n): 284361228288
- Sum of proper divisors (its aliquot sum) s(n): 202989213168
- 81372015120 is an abundant number, because the sum of its proper divisors (202989213168) is greater than itself. Its abundance is 121617198048
Bases of 81372015120
- Binary: 10010111100100010011001101010000100002
- Hexadecimal: 0x12F2266A10
- Base-36: 11DQSOPC
Squares and roots of 81372015120
- 81372015120 squared (813720151202) is 6621404844689508614400
- 81372015120 cubed (813720151203) is 538797055137715946676327049728000
-
The
square root of 81372015120 is 285257.8046609769 -
The
cube root of 81372015120 is 4333.3625298755
Scales and comparisons
How big is 81372015120?- 81,372,015,120 seconds is equal to 2,587 years, 19 weeks, 4 days, 17 hours, 32 minutes.
-
To count from 1 to 81,372,015,120 would take you about five thousand, one hundred seventy-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 81372015120 cubic inches would be around 361.1 feet tall.
Recreational maths with 81372015120
- 81372015120 backwards is 02151027318
- 81372015120 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81372015120's digits is 30
- More coming soon!
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