81733587072

Names of 81733587072

• Cardinal: 81733587072 can be written as Eighty-one billion, seven hundred thirty-three million, five hundred eighty-seven thousand and seventy-two.

Scientific notation

• Scientific notation: 8.1733587072 × 10¹⁰

Factors of 81733587072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 372

Divisors of 81733587072

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 79 96 128 131 157 158 192 237 262 314 316 384 393 471 474 524 628 632 786 942 948 1048 1256 1264 1572 1884 1896 2096 2512 2528 3144 3768 3792 4192 5024 5056 6288 7536 7584 8384 10048 10112 10349 12403 12576 15072 15168 16768 17161 20096 20567 20698 24806 25152 30144 30336 31047 34322 37209 41134 41396 49612 50304 51483 60288 61701 62094 68644 74418 82268 82792 99224 102966 123402 124188 137288 148836 164536 165584 198448 205932 246804 248376 274576 297672 329072 331168 396896 411864 493608 496752 549152 595344 658144 662336 793792 823728 987216 993504 1098304 1190688 1316288 1324672 1355719 1587584 1624793 1647456 1974432 1987008 2196608 2381376 2632576 2694277 2711438 3249586 3294912 3948864 3974016 4067157 4762752 4874379 5388554 5422876 6499172 6589824 7897728 8082831 8134314 9748758 10777108 10845752 12998344 16165662 16268628 19497516 21554216 21691504 25996688 32331324 32537256 38995032 43108432 43383008 51993376 64662648 65074512 77990064 86216864 86766016 103986752 129325296 130149024 155980128 172433728 173532032 207973504 212847883 258650592 260298048 311960256 344867456 425695766 517301184 520596096 623920512 638543649 851391532 1034602368 1277087298 1702783064 2554174596 3405566128 5108349192 6811132256 10216698384 13622264512 20433396768 27244529024 40866793536 81733587072
• Sum of all divisors σ(n): 222955190400
• Sum of proper divisors (its aliquot sum) s(n): 141221603328
• 81733587072 is an abundant number, because the sum of its proper divisors (141221603328) is greater than itself. Its abundance is 59488016256

Bases of 81733587072

• Binary: 1001100000111101100111001000010000000₂
• Hexadecimal: 0x1307B39080
• Base-36: 11JQ2FEO

Squares and roots of 81733587072

• 81733587072 squared (81733587072²) is 6680379255656205533184
• 81733587072 cubed (81733587072³) is 546011359566159023443622649397248
• The square root of 81733587072 is 285890.8656673031
• The cube root of 81733587072 is 4339.7713972761

Scales and comparisons

• 81,733,587,072 seconds is equal to 2,598 years, 45 weeks, 3 days, 14 hours, 11 minutes, 12 seconds.
• To count from 1 to 81,733,587,072 would take you about five thousand, one hundred ninety-seven 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 81733587072 cubic inches would be around 361.6 feet tall.

Recreational maths with 81733587072

• 81733587072 backwards is 27078533718
• The number of decimal digits it has is: 11
• The sum of 81733587072's digits is 51
• More coming soon!