81326996800
81,326,996,800 is an even composite number composed of six prime numbers multiplied together.
81326996800 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred thirty-six divisors.
Prime factorization of 81326996800:
26 × 52 × 7 × 29 × 337 × 743
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 29 × 337 × 743)See below for interesting mathematical facts about the number 81326996800 from the Numbermatics database.
Names of 81326996800
- Cardinal: 81326996800 can be written as Eighty-one billion, three hundred twenty-six million, nine hundred ninety-six thousand, eight hundred.
Scientific notation
- Scientific notation: 8.13269968 × 1010
Factors of 81326996800
Divisors of 81326996800
- Number of divisors d(n): 336
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 29 32 35 40 50 56 58 64 70 80 100 112 116 140 145 160 175 200 203 224 232 280 290 320 337 350 400 406 448 464 560 580 674 700 725 743 800 812 928 1015 1120 1160 1348 1400 1450 1486 1600 1624 1685 1856 2030 2240 2320 2359 2696 2800 2900 2972 3248 3370 3715 4060 4640 4718 5075 5201 5392 5600 5800 5944 6496 6740 7430 8120 8425 9280 9436 9773 10150 10402 10784 11200 11600 11795 11888 12992 13480 14860 16240 16850 18575 18872 19546 20300 20804 21547 21568 23200 23590 23776 26005 26960 29720 32480 33700 37150 37744 39092 40600 41608 43094 46400 47180 47552 48865 52010 53920 58975 59440 64960 67400 68411 74300 75488 78184 81200 83216 86188 94360 97730 104020 107735 107840 117950 118880 130025 134800 136822 148600 150829 150976 156368 162400 166432 172376 188720 195460 208040 215470 235900 237760 244325 250391 260050 269600 273644 297200 301658 312736 324800 332864 342055 344752 377440 390920 416080 430940 471800 488650 500782 520100 538675 539200 547288 594400 603316 625472 684110 689504 754145 754880 781840 832160 861880 943600 977300 1001564 1040200 1077350 1094576 1188800 1206632 1251955 1368220 1379008 1508290 1563680 1664320 1710275 1723760 1752737 1887200 1954600 2003128 2080400 2154700 2189152 2413264 2503910 2736440 3016580 3127360 3420550 3447520 3505474 3770725 3774400 3909200 4006256 4160800 4309400 4378304 4826528 5007820 5472880 6033160 6259775 6841100 6895040 7010948 7261339 7541450 7818400 8012512 8321600 8618800 8763685 9653056 10015640 10945760 12066320 12519550 13682200 14021896 14522678 15082900 15636800 16025024 17237600 17527370 20031280 21891520 24132640 25039100 27364400 28043792 29045356 30165800 34475200 35054740 36306695 40062560 43818425 48265280 50078200 50829373 54728800 56087584 58090712 60331600 70109480 72613390 80125120 87636850 100156400 101658746 109457600 112175168 116181424 120663200 140218960 145226780 175273700 181533475 200312800 203317492 232362848 241326400 254146865 280437920 290453560 350547400 363066950 400625600 406634984 464725696 508293730 560875840 580907120 701094800 726133900 813269968 1016587460 1161814240 1270734325 1402189600 1452267800 1626539936 2033174920 2323628480 2541468650 2804379200 2904535600 3253079872 4066349840 5082937300 5809071200 8132699680 10165874600 11618142400 16265399360 20331749200 40663498400 81326996800
- Sum of all divisors σ(n): 237610863360
- Sum of proper divisors (its aliquot sum) s(n): 156283866560
- 81326996800 is an abundant number, because the sum of its proper divisors (156283866560) is greater than itself. Its abundance is 74956869760
Bases of 81326996800
- Binary: 10010111011110111011101111101010000002
- Hexadecimal: 0x12EF777D40
- Base-36: 11CZZSCG
Squares and roots of 81326996800
- 81326996800 squared (813269968002) is 6614080408507210240000
- 81326996800 cubed (813269968003) is 537903296217608579965407232000000
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The
square root of 81326996800 is 285178.8856139247 -
The
cube root of 81326996800 is 4332.5632514531
Scales and comparisons
How big is 81326996800?- 81,326,996,800 seconds is equal to 2,585 years, 49 weeks, 1 day, 16 hours, 26 minutes, 40 seconds.
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To count from 1 to 81,326,996,800 would take you about five thousand, one hundred seventy-one 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 81326996800 cubic inches would be around 361 feet tall.
Recreational maths with 81326996800
- 81326996800 backwards is 00869962318
- The number of decimal digits it has is: 11
- The sum of 81326996800's digits is 52
- More coming soon!
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