81079579776

Names of 81079579776

• Cardinal: 81079579776 can be written as Eighty-one billion, seventy-nine million, five hundred seventy-nine thousand, seven hundred seventy-six.

Scientific notation

• Scientific notation: 8.1079579776 × 10¹⁰

Factors of 81079579776

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 217

Divisors of 81079579776

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 19 24 26 32 38 39 48 52 53 57 64 76 78 96 104 106 114 127 128 152 156 159 192 208 212 228 247 254 304 312 318 381 384 416 424 456 494 508 608 624 636 689 741 762 832 848 912 988 1007 1016 1216 1248 1272 1378 1482 1524 1651 1664 1696 1824 1976 2014 2032 2067 2413 2432 2496 2544 2756 2964 3021 3048 3302 3392 3648 3952 4028 4064 4134 4826 4953 4992 5088 5512 5928 6042 6096 6604 6731 6784 7239 7296 7904 8056 8128 8268 9652 9906 10176 11024 11856 12084 12192 13091 13208 13462 14478 15808 16112 16129 16256 16536 19304 19812 20193 20352 22048 23712 24168 24384 26182 26416 26924 28956 31369 31616 32224 32258 33072 38608 39273 39624 40386 44096 47424 48336 48387 48768 52364 52832 53848 57912 62738 64448 64516 66144 77216 78546 79248 80772 87503 88192 94107 94848 96672 96774 104728 105664 107696 115824 125476 127889 128896 129032 132288 154432 157092 158496 161544 175006 188214 193344 193548 209456 209677 211328 215392 231648 250952 255778 258064 262509 264576 306451 308864 314184 316992 323088 350012 376428 383667 386688 387096 418912 419354 430784 463296 501904 511556 516128 525018 612902 628368 629031 633984 646176 700024 752856 767334 774192 837824 838708 854837 861568 919353 926592 1003808 1023112 1032256 1050036 1225804 1256736 1258062 1292352 1400048 1505712 1534668 1548384 1662557 1675648 1677416 1709674 1838706 2007616 2046224 2064512 2100072 2451608 2513472 2516124 2564511 2584704 2800096 3011424 3069336 3096768 3325114 3354832 3419348 3677412 3983863 4015232 4092448 4200144 4903216 4987671 5026944 5032248 5129022 5600192 6022848 6138672 6193536 6650228 6709664 6838696 7354824 7967726 8184896 8400288 9806432 9975342 10064496 10258044 11112881 11200384 11951589 12045696 12277344 13300456 13419328 13677392 14709648 15935452 16241903 16369792 16800576 19612864 19950684 20128992 20516088 22225762 23903178 24554688 26600912 26838656 27354784 29419296 31870904 32483806 33338643 33601152 39225728 39901368 40257984 41032176 44451524 47806356 48725709 49109376 53201824 54709568 58838592 63741808 64967612 66677286 79802736 80515968 82064352 88903048 95612712 97451418 106403648 109419136 117677184 127483616 129935224 133354572 159605472 164128704 177806096 191225424 194902836 211144739 212807296 254967232 259870448 266709144 319210944 328257408 355612192 382450848 389805672 422289478 509934464 519740896 533418288 633434217 638421888 711224384 764901696 779611344 844578956 1039481792 1066836576 1266868434 1422448768 1529803392 1559222688 1689157912 2078963584 2133673152 2533736868 3118445376 3378315824 4267346304 5067473736 6236890752 6756631648 10134947472 13513263296 20269894944 27026526592 40539789888 81079579776
• Sum of all divisors σ(n): 250721956800
• Sum of proper divisors (its aliquot sum) s(n): 169642377024
• 81079579776 is an abundant number, because the sum of its proper divisors (169642377024) is greater than itself. Its abundance is 88562797248

Bases of 81079579776

• Binary: 1001011100000101110000011010010000000₂
• Hexadecimal: 0x12E0B83480
• Base-36: 118WOS5C

Squares and roots of 81079579776

• 81079579776 squared (81079579776²) is 6573898256652748210176
• 81079579776 cubed (81079579776³) is 533008908139583821236606207000576
• The square root of 81079579776 is 284744.7625084611
• The cube root of 81079579776 is 4328.1652088367

Scales and comparisons

• 81,079,579,776 seconds is equal to 2,578 years, 4 weeks, 1 day, 1 hour, 29 minutes, 36 seconds.
• To count from 1 to 81,079,579,776 would take you about five thousand, one hundred fifty-six 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 81079579776 cubic inches would be around 360.7 feet tall.

Recreational maths with 81079579776

• 81079579776 backwards is 67797597018
• The number of decimal digits it has is: 11
• The sum of 81079579776's digits is 66
• More coming soon!