81829289984

Names of 81829289984

• Cardinal: 81829289984 can be written as Eighty-one billion, eight hundred twenty-nine million, two hundred eighty-nine thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 8.1829289984 × 10¹⁰

Factors of 81829289984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 1164

Divisors of 81829289984

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 8 13 16 19 26 32 37 38 52 64 74 76 104 128 148 152 208 247 256 296 304 416 481 494 512 592 608 703 832 962 988 1024 1093 1184 1216 1406 1664 1924 1976 2048 2186 2368 2432 2812 3328 3848 3952 4096 4372 4736 4864 5624 6656 7696 7904 8192 8744 9139 9472 9728 11248 13312 14209 15392 15808 17488 18278 18944 19456 20767 22496 26624 28418 30784 31616 34976 36556 37888 38912 40441 41534 44992 53248 56836 61568 63232 69952 73112 75776 77824 80882 83068 89984 106496 113672 123136 126464 139904 146224 151552 155648 161764 166136 179968 227344 246272 252928 269971 279808 292448 303104 323528 332272 359936 454688 492544 505856 525733 539942 559616 584896 647056 664544 719872 768379 909376 985088 1011712 1051466 1079884 1119232 1169792 1294112 1329088 1439744 1536758 1818752 1970176 2023424 2102932 2159768 2238464 2339584 2588224 2658176 2879488 3073516 3637504 3940352 4205864 4319536 4476928 4679168 5176448 5316352 5758976 6147032 7275008 8411728 8639072 8953856 9358336 9988927 10352896 10632704 12294064 14550016 16823456 17278144 18716672 19977854 20705792 21265408 24588128 29100032 33646912 34556288 37433344 39955708 41411584 42530816 49176256 58200064 67293824 69112576 74866688 79911416 82823168 85061632 98352512 116400128 134587648 138225152 159822832 165646336 170123264 196705024 269175296 276450304 319645664 331292672 393410048 538350592 552900608 639291328 786820096 1076701184 1105801216 1278582656 1573640192 2153402368 2211602432 2557165312 3147280384 4306804736 5114330624 6294560768 10228661248 20457322496 40914644992 81829289984
• Sum of all divisors σ(n): 190700741280
• Sum of proper divisors (its aliquot sum) s(n): 108871451296
• 81829289984 is an abundant number, because the sum of its proper divisors (108871451296) is greater than itself. Its abundance is 27042161312

Bases of 81829289984

• Binary: 1001100001101011001111110000000000000₂
• Hexadecimal: 0x130D67E000
• Base-36: 11LB1O8W

Squares and roots of 81829289984

• 81829289984 squared (81829289984²) is 6696032699285562720256
• 81829289984 cubed (81829289984³) is 547931601492184581460448094715904
• The square root of 81829289984 is 286058.1933523317
• The cube root of 81829289984 is 4341.4645680429

Scales and comparisons

• 81,829,289,984 seconds is equal to 2,601 years, 47 weeks, 5 days, 6 hours, 19 minutes, 44 seconds.
• To count from 1 to 81,829,289,984 would take you about five thousand, two hundred three 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 81829289984 cubic inches would be around 361.8 feet tall.

Recreational maths with 81829289984

• 81829289984 backwards is 48998292818
• The number of decimal digits it has is: 11
• The sum of 81829289984's digits is 68
• More coming soon!