81376378880
81,376,378,880 is an even composite number composed of four prime numbers multiplied together.
81376378880 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred thirty-six divisors.
Prime factorization of 81376378880:
216 × 5 × 31 × 8011
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 31 × 8011)See below for interesting mathematical facts about the number 81376378880 from the Numbermatics database.
Names of 81376378880
- Cardinal: 81376378880 can be written as Eighty-one billion, three hundred seventy-six million, three hundred seventy-eight thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 8.137637888 × 1010
Factors of 81376378880
Divisors of 81376378880
- Number of divisors d(n): 136
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Complete list of divisors:
1 2 4 5 8 10 16 20 31 32 40 62 64 80 124 128 155 160 248 256 310 320 496 512 620 640 992 1024 1240 1280 1984 2048 2480 2560 3968 4096 4960 5120 7936 8011 8192 9920 10240 15872 16022 16384 19840 20480 31744 32044 32768 39680 40055 40960 63488 64088 65536 79360 80110 81920 126976 128176 158720 160220 163840 248341 253952 256352 317440 320440 327680 496682 507904 512704 634880 640880 993364 1015808 1025408 1241705 1269760 1281760 1986728 2031616 2050816 2483410 2539520 2563520 3973456 4101632 4966820 5079040 5127040 7946912 8203264 9933640 10158080 10254080 15893824 16406528 19867280 20508160 31787648 32813056 39734560 41016320 63575296 65626112 79469120 82032640 127150592 131252224 158938240 164065280 254301184 262504448 317876480 328130560 508602368 525008896 635752960 656261120 1017204736 1271505920 1312522240 2034409472 2543011840 2625044480 4068818944 5086023680 8137637888 10172047360 16275275776 20344094720 40688189440 81376378880
- Sum of all divisors σ(n): 201627043584
- Sum of proper divisors (its aliquot sum) s(n): 120250664704
- 81376378880 is an abundant number, because the sum of its proper divisors (120250664704) is greater than itself. Its abundance is 38874285824
Bases of 81376378880
- Binary: 10010111100100110100100000000000000002
- Hexadecimal: 0x12F2690000
- Base-36: 11DTE7SW
Squares and roots of 81376378880
- 81376378880 squared (813763788802) is 6622115039621310054400
- 81376378880 cubed (813763788803) is 538883742451169938708807811072000
-
The
square root of 81376378880 is 285265.4533587969 -
The
cube root of 81376378880 is 4333.4399906423
Scales and comparisons
How big is 81376378880?- 81,376,378,880 seconds is equal to 2,587 years, 26 weeks, 6 days, 5 hours, 41 minutes, 20 seconds.
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To count from 1 to 81,376,378,880 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 81376378880 cubic inches would be around 361.1 feet tall.
Recreational maths with 81376378880
- 81376378880 backwards is 08887367318
- The number of decimal digits it has is: 11
- The sum of 81376378880's digits is 59
- More coming soon!
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The information we have on file for 81376378880 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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