81377380240
81,377,380,240 is an even composite number composed of six prime numbers multiplied together.
What does the number 81377380240 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 360 divisors.
81377380240 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 81377380240:
24 × 5 × 132 × 17 × 292 × 421
(2 × 2 × 2 × 2 × 5 × 13 × 13 × 17 × 29 × 29 × 421)See below for interesting mathematical facts about the number 81377380240 from the Numbermatics database.
Names of 81377380240
- Cardinal: 81377380240 can be written as Eighty-one billion, three hundred seventy-seven million, three hundred eighty thousand, two hundred forty.
Scientific notation
- Scientific notation: 8.137738024 × 1010
Factors of 81377380240
Divisors of 81377380240
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 26 29 34 40 52 58 65 68 80 85 104 116 130 136 145 169 170 208 221 232 260 272 290 338 340 377 421 442 464 493 520 580 676 680 754 841 842 845 884 986 1040 1105 1160 1352 1360 1508 1682 1684 1690 1768 1885 1972 2105 2210 2320 2465 2704 2873 3016 3364 3368 3380 3536 3770 3944 4205 4210 4420 4901 4930 5473 5746 6032 6409 6728 6736 6760 7157 7540 7888 8410 8420 8840 9802 9860 10933 10946 11492 12209 12818 13456 13520 14297 14314 14365 15080 16820 16840 17680 19604 19720 21866 21892 22984 24418 24505 25636 27365 28594 28628 28730 30160 32045 33640 33680 35785 39208 39440 43732 43784 45968 48836 49010 51272 54665 54730 57188 57256 57460 61045 64090 67280 71149 71485 71570 78416 83317 87464 87568 93041 97672 98020 102544 109330 109460 114376 114512 114920 122090 128180 142129 142298 142970 143140 158717 166634 174928 185861 186082 195344 196040 207553 218660 218920 228752 229840 244180 256360 284258 284596 285940 286280 317434 333268 354061 355745 371722 372164 392080 415106 416585 437320 437840 465205 488360 512720 568516 569192 571880 572560 634868 666536 708122 710645 711490 743444 744328 793585 830212 833170 874640 929305 930410 976720 1037765 1137032 1138384 1143760 1209533 1269736 1333072 1416244 1421290 1422980 1486888 1488656 1587170 1660424 1666340 1770305 1858610 1860820 2063321 2075530 2274064 2416193 2419066 2539472 2698189 2832488 2842580 2845960 2973776 3174340 3320848 3332680 3540610 3717220 3721640 4126642 4151060 4602793 4832386 4838132 5396378 5664976 5685160 5691920 6019037 6047665 6348680 6665360 7081220 7434440 7443280 8253284 8302120 9205586 9664772 9676264 10316605 10792756 11370320 12038074 12080965 12095330 12697360 13490945 14162440 14868880 16506568 16604240 18411172 19329544 19352528 20633210 21585512 23013965 24076148 24161930 24190660 26981890 28324880 30095185 33013136 35076457 36822344 38659088 41266420 43171024 46027930 48152296 48323860 48381320 53963780 59836309 60190370 70152914 73644688 78247481 82532840 92055860 96304592 96647720 96762640 107927560 119672618 120380740 140305828 156494962 165065680 175382285 184111720 193295440 215855120 239345236 240761480 280611656 299181545 312989924 350764570 368223440 391237405 478690472 481522960 561223312 598363090 625979848 701529140 782474810 957380944 1017217253 1196726180 1251959696 1403058280 1564949620 2034434506 2393452360 2806116560 3129899240 4068869012 4786904720 5086086265 6259798480 8137738024 10172172530 16275476048 20344345060 40688690120 81377380240
- Sum of all divisors σ(n): 225199356408
- Sum of proper divisors (its aliquot sum) s(n): 143821976168
- 81377380240 is an abundant number, because the sum of its proper divisors (143821976168) is greater than itself. Its abundance is 62444595928
Bases of 81377380240
- Binary: 10010111100100111100001000111100100002
- Hexadecimal: 0x12F2784790
- Base-36: 11DTZOGG
Squares and roots of 81377380240
- 81377380240 squared (813773802402) is 6622278014725542457600
- 81377380240 cubed (813773802403) is 538903636059312787812379277824000
-
The
square root of 81377380240 is 285267.2084905659 -
The
cube root of 81377380240 is 4333.4577653157
Scales and comparisons
How big is 81377380240?- 81,377,380,240 seconds is equal to 2,587 years, 28 weeks, 3 days, 19 hours, 50 minutes, 40 seconds.
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To count from 1 to 81,377,380,240 would take you about five thousand, one hundred seventy-five 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 81377380240 cubic inches would be around 361.1 feet tall.
Recreational maths with 81377380240
- 81377380240 backwards is 04208377318
- The number of decimal digits it has is: 11
- The sum of 81377380240's digits is 43
- More coming soon!
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