81627638976

Names of 81627638976

• Cardinal: 81627638976 can be written as Eighty-one billion, six hundred twenty-seven million, six hundred thirty-eight thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 8.1627638976 × 10¹⁰

Factors of 81627638976

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 989

Divisors of 81627638976

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 61 64 71 72 78 96 104 108 117 122 142 144 156 183 192 208 213 216 234 244 284 288 312 351 366 416 426 432 468 488 549 568 576 624 639 702 732 793 832 839 852 864 923 936 976 1098 1136 1248 1278 1404 1464 1586 1647 1678 1704 1728 1846 1872 1917 1952 2196 2272 2379 2496 2517 2556 2769 2808 2928 3172 3294 3356 3408 3692 3744 3834 3904 4331 4392 4544 4758 5034 5112 5538 5616 5856 6344 6588 6712 6816 7137 7384 7488 7551 7668 8307 8662 8784 9516 10068 10224 10907 11076 11232 11712 12688 12993 13176 13424 13632 14274 14768 15102 15336 16614 17324 17568 19032 20136 20448 21411 21814 22152 22464 22653 24921 25376 25986 26352 26848 28548 29536 30204 30672 32721 33228 34648 35136 38064 38979 40272 40896 42822 43628 44304 45306 49842 50752 51179 51972 52704 53696 56303 57096 59072 59569 60408 61344 65442 66456 69296 76128 77958 80544 85644 87256 88608 90612 98163 99684 102358 103944 105408 112606 114192 116937 119138 120816 122688 130884 132912 138592 152256 153537 155916 161088 168909 171288 174512 177216 178707 181224 196326 199368 204716 207888 225212 228384 233874 238276 241632 261768 265824 277184 294489 307074 311832 337818 342576 349024 357414 362448 392652 398736 409432 415776 450424 456768 460611 467748 476552 483264 506727 523536 531648 536121 588978 614148 623664 665327 675636 685152 698048 714828 724896 774397 785304 797472 818864 831552 900848 921222 935496 953104 1013454 1047072 1072242 1177956 1228296 1247328 1330654 1351272 1370304 1381833 1429656 1449792 1520181 1548794 1570608 1594944 1608363 1637728 1801696 1842444 1870992 1906208 1995981 2026908 2094144 2144484 2323191 2355912 2456592 2494656 2661308 2702544 2763666 2859312 3040362 3097588 3141216 3216726 3275456 3603392 3633709 3684888 3741984 3812416 3991962 4053816 4288968 4646382 4711824 4913184 5322616 5405088 5527332 5718624 5987943 6080724 6195176 6282432 6433452 6969573 7267418 7369776 7483968 7983924 8107632 8577936 9292764 9423648 9826368 10645232 10810176 10901127 11054664 11437248 11975886 12161448 12390352 12866904 13939146 14534836 14739552 15967848 16215264 17155872 17963829 18585528 18847296 20908719 21290464 21802254 22109328 23951772 24322896 24780704 25733808 27878292 29069672 29479104 31935696 32430528 32703381 34311744 35927658 37171056 41817438 42580928 43604508 44218656 47238217 47903544 48645792 49561408 51467616 55756584 58139344 63871392 65406762 71855316 74342112 83634876 87209016 88437312 94476434 95807088 97291584 98110143 102935232 111513168 116278688 127742784 130813524 141714651 143710632 148684224 167269752 174418032 188952868 191614176 196220286 223026336 232557376 261627048 283429302 287421264 334539504 348836064 377905736 383228352 392440572 425143953 446052672 523254096 566858604 574842528 669079008 697672128 755811472 784881144 850287906 1046508192 1133717208 1149685056 1275431859 1338158016 1511622944 1569762288 1700575812 2093016384 2267434416 2550863718 3023245888 3139524576 3401151624 4534868832 5101727436 6279049152 6802303248 9069737664 10203454872 13604606496 20406909744 27209212992 40813819488 81627638976
• Sum of all divisors σ(n): 266682931200
• Sum of proper divisors (its aliquot sum) s(n): 185055292224
• 81627638976 is an abundant number, because the sum of its proper divisors (185055292224) is greater than itself. Its abundance is 103427653248

Bases of 81627638976

• Binary: 1001100000001011000101110110011000000₂
• Hexadecimal: 0x130162ECC0
• Base-36: 11HYZLC0

Squares and roots of 81627638976

• 81627638976 squared (81627638976²) is 6663071444796194328576
• 81627638976 cubed (81627638976³) is 543890790367118464551740448178176
• The square root of 81627638976 is 285705.5109303985
• The cube root of 81627638976 is 4337.8954270421

Scales and comparisons

• 81,627,638,976 seconds is equal to 2,595 years, 26 weeks, 2 days, 8 hours, 9 minutes, 36 seconds.
• To count from 1 to 81,627,638,976 would take you about five thousand, one hundred ninety-one 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 81627638976 cubic inches would be around 361.5 feet tall.

Recreational maths with 81627638976

• 81627638976 backwards is 67983672618
• The number of decimal digits it has is: 11
• The sum of 81627638976's digits is 63
• More coming soon!