81468429824

Names of 81468429824

• Cardinal: 81468429824 can be written as Eighty-one billion, four hundred sixty-eight million, four hundred twenty-nine thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 8.1468429824 × 10¹⁰

Factors of 81468429824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1472

Divisors of 81468429824

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 8 16 19 32 38 64 73 76 89 128 146 152 178 256 292 304 356 512 584 608 712 1168 1216 1289 1387 1424 1691 2336 2432 2578 2774 2848 3382 4672 4864 5156 5548 5696 6497 6764 9344 9728 10312 11096 11392 12994 13528 18688 20624 22192 22784 24491 25988 27056 37376 41248 44384 45568 48982 51976 54112 82496 88768 94097 97964 103952 108224 114721 123443 164992 177536 188194 195928 207904 216448 229442 246886 329984 355072 376388 391856 415808 432896 458884 493772 659968 710144 752776 783712 831616 865792 917768 987544 1505552 1567424 1663232 1787843 1835536 1975088 2179699 3011104 3134848 3326464 3575686 3671072 3950176 4359398 6022208 6269696 7151372 7342144 7900352 8374633 8718796 12044416 12539392 14302744 14684288 15800704 16749266 17437592 24088832 28605488 29368576 31601408 33498532 34875184 48177664 57210976 58737152 63202816 66997064 69750368 114421952 133994128 139500736 159118027 228843904 267988256 279001472 318236054 457687808 535976512 558002944 636472108 915375616 1071953024 1116005888 1272944216 2143906048 2545888432 4287812096 5091776864 10183553728 20367107456 40734214912 81468429824
• Sum of all divisors σ(n): 175780044000
• Sum of proper divisors (its aliquot sum) s(n): 94311614176
• 81468429824 is an abundant number, because the sum of its proper divisors (94311614176) is greater than itself. Its abundance is 12843184352

Bases of 81468429824

• Binary: 1001011110111111001011001011000000000₂
• Hexadecimal: 0x12F7E59600
• Base-36: 11FC76RK

Squares and roots of 81468429824

• 81468429824 squared (81468429824²) is 6637105057988012670976
• 81468429824 cubed (81468429824³) is 540714527651211860918631057588224
• The square root of 81468429824 is 285426.7503651331
• The cube root of 81468429824 is 4335.0733349219

Scales and comparisons

• 81,468,429,824 seconds is equal to 2,590 years, 23 weeks, 15 hours, 23 minutes, 44 seconds.
• To count from 1 to 81,468,429,824 would take you about five thousand, one hundred eighty 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 81468429824 cubic inches would be around 361.3 feet tall.

Recreational maths with 81468429824

• 81468429824 backwards is 42892486418
• The number of decimal digits it has is: 11
• The sum of 81468429824's digits is 56
• More coming soon!