81426550608

Names of 81426550608

• Cardinal: 81426550608 can be written as Eighty-one billion, four hundred twenty-six million, five hundred fifty thousand, six hundred eight.

Scientific notation

• Scientific notation: 8.1426550608 × 10¹⁰

Factors of 81426550608

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8773

Divisors of 81426550608

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 36 37 39 48 52 72 74 78 104 111 117 137 144 148 156 208 222 234 274 296 312 333 411 444 468 481 548 592 624 666 822 888 936 962 1096 1233 1332 1443 1644 1776 1781 1872 1924 2192 2466 2664 2886 3288 3562 3848 4329 4932 5069 5328 5343 5772 6576 7124 7696 8581 8658 9864 10138 10686 11544 14248 15207 16029 17162 17316 19728 20276 21372 23088 25743 28496 30414 32058 34324 34632 40552 42744 45621 51486 60828 64116 65897 68648 69264 77229 81104 85488 91242 102972 111553 121656 128232 131794 137296 154458 182484 197691 205944 223106 243312 256464 263588 308916 317497 334659 364968 395382 411888 446212 527176 593073 617832 634994 669318 729936 790764 892424 952491 1003977 1054352 1175597 1186146 1235664 1269988 1338636 1581528 1784848 1904982 2007954 2351194 2372292 2539976 2677272 2857473 3163056 3526791 3809964 4015908 4127461 4702388 4744584 5079952 5354544 5714946 7053582 7619928 8031816 8254922 9404776 9489168 10580373 11429892 12382383 14107164 15239856 15282761 16063632 16509844 18809552 21160746 22859784 24764766 28214328 30565522 33019688 37147149 42321492 43497089 45719568 45848283 49529532 56428656 61131044 66039376 74294298 84642984 86994178 91696566 99059064 122262088 130491267 137544849 148588596 169285968 173988356 183393132 198118128 244524176 260982534 275089698 297177192 347976712 366786264 391473801 521965068 550179396 565462157 594354384 695953424 733572528 782947602 1043930136 1100358792 1130924314 1565895204 1696386471 2087860272 2200717584 2261848628 3131790408 3392772942 4523697256 5089159413 6263580816 6785545884 9047394512 10178318826 13571091768 20356637652 27142183536 40713275304 81426550608
• Sum of all divisors σ(n): 253912613136
• Sum of proper divisors (its aliquot sum) s(n): 172486062528
• 81426550608 is an abundant number, because the sum of its proper divisors (172486062528) is greater than itself. Its abundance is 91059511920

Bases of 81426550608

• Binary: 1001011110101011001101000111101010000₂
• Hexadecimal: 0x12F5668F50
• Base-36: 11EN9KK0

Squares and roots of 81426550608

• 81426550608 squared (81426550608²) is 6630283143917185169664
• 81426550608 cubed (81426550608³) is 539881085963542025578552762355712
• The square root of 81426550608 is 285353.3784765829
• The cube root of 81426550608 is 4334.3303862295

Scales and comparisons

• 81,426,550,608 seconds is equal to 2,589 years, 5 weeks, 5 days, 22 hours, 16 minutes, 48 seconds.
• To count from 1 to 81,426,550,608 would take you about five thousand, one hundred seventy-eight 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 81426550608 cubic inches would be around 361.2 feet tall.

Recreational maths with 81426550608

• 81426550608 backwards is 80605562418
• The number of decimal digits it has is: 11
• The sum of 81426550608's digits is 45
• More coming soon!