18166557519872

Names of 18166557519872

• Cardinal: 18166557519872 can be written as Eighteen trillion, one hundred sixty-six billion, five hundred fifty-seven million, five hundred nineteen thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8166557519872 × 10¹³

Factors of 18166557519872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 86

Divisors of 18166557519872

• Number of divisors d(n): 208
• Complete list of divisors:
  1 2 4 8 16 31 32 53 62 64 106 124 128 212 248 256 424 496 512 848 961 992 1024 1643 1696 1922 1984 2048 2809 3286 3392 3844 3968 4096 5618 6572 6784 7688 7936 11236 13144 13568 15376 15872 22472 26288 27136 29791 30752 31744 44944 50933 52576 54272 59582 61504 63488 87079 89888 101866 105152 108544 119164 123008 126976 148877 174158 179776 203732 210304 217088 238328 246016 297754 348316 359552 407464 420608 476656 492032 595508 696632 719104 814928 841216 953312 984064 1191016 1393264 1438208 1578923 1629856 1682432 1906624 1968128 2382032 2699449 2786528 2876416 3157846 3259712 3364864 3813248 3936256 4615187 4764064 5398898 5573056 5752832 6315692 6519424 6729728 7626496 9230374 9528128 10797796 11146112 11505664 12631384 13038848 15252992 18460748 19056256 21595592 22292224 25262768 26077696 30505984 36921496 38112512 43191184 44584448 50525536 52155392 61011968 73842992 76225024 83682919 86382368 89168896 101051072 104310784 122023936 143070797 147685984 152450048 167365838 172764736 178337792 202102144 208621568 286141594 295371968 304900096 334731676 345529472 356675584 404204288 572283188 590743936 609800192 669463352 691058944 808408576 1144566376 1181487872 1338926704 1382117888 1616817152 2289132752 2362975744 2677853408 2764235776 3233634304 4435194707 4578265504 4725951488 5355706816 5528471552 6467268608 8870389414 9156531008 9451902976 10711413632 11056943104 17740778828 18313062016 18903805952 21422827264 35481557656 36626124032 42845654528 70963115312 73252248064 85691309056 141926230624 146504496128 171382618112 283852461248 293008992256 342765236224 567704922496 586017984512 1135409844992 2270819689984 4541639379968 9083278759936 18166557519872
• Sum of all divisors σ(n): 38261505634560
• Sum of proper divisors (its aliquot sum) s(n): 20094948114688
• 18166557519872 is an abundant number, because the sum of its proper divisors (20094948114688) is greater than itself. Its abundance is 1928390594816

Bases of 18166557519872

• Binary: 100001000010110111011001101010011000000000000₂
• Hexadecimal: 0x1085BB353000
• Base-36: 6FTLNATQ8

Squares and roots of 18166557519872

• 18166557519872 squared (18166557519872²) is 330023812122817911674896384
• 18166557519872 cubed (18166557519872³) is 5995396565856601848976564007281620942848
• The square root of 18166557519872 is 4262224.4802300125
• 18166557519872 is a perfect cube number. Its cube root is 26288

Scales and comparisons

• 18,166,557,519,872 seconds is equal to 577,640 years, 17 weeks, 3 days, 9 hours, 44 minutes, 32 seconds.
• To count from 1 to 18,166,557,519,872 would take you about one million, four hundred forty-four thousand, one hundred 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 18166557519872 cubic inches would be around 2190.7 feet tall.

Recreational maths with 18166557519872

• 18166557519872 backwards is 27891575566181
• The number of decimal digits it has is: 14
• The sum of 18166557519872's digits is 71
• More coming soon!