81372124440
81,372,124,440 is an even composite number composed of six prime numbers multiplied together.
81372124440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 81372124440:
23 × 32 × 5 × 31 × 67 × 108827
(2 × 2 × 2 × 3 × 3 × 5 × 31 × 67 × 108827)See below for interesting mathematical facts about the number 81372124440 from the Numbermatics database.
Names of 81372124440
- Cardinal: 81372124440 can be written as Eighty-one billion, three hundred seventy-two million, one hundred twenty-four thousand, four hundred forty.
Scientific notation
- Scientific notation: 8.137212444 × 1010
Factors of 81372124440
Divisors of 81372124440
- Number of divisors d(n): 192
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 31 36 40 45 60 62 67 72 90 93 120 124 134 155 180 186 201 248 268 279 310 335 360 372 402 465 536 558 603 620 670 744 804 930 1005 1116 1206 1240 1340 1395 1608 1860 2010 2077 2232 2412 2680 2790 3015 3720 4020 4154 4824 5580 6030 6231 8040 8308 10385 11160 12060 12462 16616 18693 20770 24120 24924 31155 37386 41540 49848 62310 74772 83080 93465 108827 124620 149544 186930 217654 249240 326481 373860 435308 544135 652962 747720 870616 979443 1088270 1305924 1632405 1958886 2176540 2611848 3264810 3373637 3917772 4353080 4897215 6529620 6747274 7291409 7835544 9794430 10120911 13059240 13494548 14582818 16868185 19588860 20241822 21874227 26989096 29165636 30362733 33736370 36457045 39177720 40483644 43748454 50604555 58331272 60725466 65622681 67472740 72914090 80967288 87496908 101209110 109371135 121450932 131245362 134945480 145828180 151813665 174993816 202418220 218742270 226033679 242901864 262490724 291656360 303627330 328113405 404836440 437484540 452067358 524981448 607254660 656226810 678101037 874969080 904134716 1130168395 1214509320 1312453620 1356202074 1808269432 2034303111 2260336790 2624907240 2712404148 3390505185 4068606222 4520673580 5424808296 6781010370 8137212444 9041347160 10171515555 13562020740 16274424888 20343031110 27124041480 40686062220 81372124440
- Sum of all divisors σ(n): 277067381760
- Sum of proper divisors (its aliquot sum) s(n): 195695257320
- 81372124440 is an abundant number, because the sum of its proper divisors (195695257320) is greater than itself. Its abundance is 114323132880
Bases of 81372124440
- Binary: 10010111100100010100000010101000110002
- Hexadecimal: 0x12F2281518
- Base-36: 11DQV120
Squares and roots of 81372124440
- 81372124440 squared (813721244402) is 6621422635878845313600
- 81372124440 cubed (813721244403) is 538799226696566209621770024384000
-
The
square root of 81372124440 is 285257.9962770545 -
The
cube root of 81372124440 is 4333.3644704403
Scales and comparisons
How big is 81372124440?- 81,372,124,440 seconds is equal to 2,587 years, 19 weeks, 5 days, 23 hours, 54 minutes.
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To count from 1 to 81,372,124,440 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 81372124440 cubic inches would be around 361.1 feet tall.
Recreational maths with 81372124440
- 81372124440 backwards is 04442127318
- 81372124440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81372124440's digits is 36
- More coming soon!
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The information we have on file for 81372124440 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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