21228150731840

Names of 21228150731840

• Cardinal: 21228150731840 can be written as Twenty-one trillion, two hundred twenty-eight billion, one hundred fifty million, seven hundred thirty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.122815073184 × 10¹³

Factors of 21228150731840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1860574

Divisors of 21228150731840

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 130 160 169 208 211 260 320 338 416 422 520 676 832 844 845 1040 1055 1352 1688 1690 2080 2110 2704 2743 3376 3380 4160 4220 5408 5486 6752 6760 8440 10816 10972 13504 13520 13715 16880 21944 27040 27430 33760 35659 43888 54080 54860 67520 71318 87776 109720 142636 175552 178295 219440 285272 356590 438880 570544 713180 877760 1141088 1426360 1860343 2282176 2852720 3720686 5705440 7441372 9301715 11410880 14882744 18603430 24184459 29765488 37206860 48368918 59530976 74413720 96737836 119061952 120922295 148827440 193475672 241844590 297654880 314397967 386951344 392532373 483689180 595309760 628795934 773902688 785064746 967378360 1257591868 1547805376 1570129492 1571989835 1934756720 1962661865 2515183736 3140258984 3143979670 3869513440 3925323730 5030367472 5102920849 6280517968 6287959340 7739026880 7850647460 10060734944 10205841698 12561035936 12575918680 15701294920 20121469888 20411683396 25122071872 25151837360 25514604245 31402589840 40823366792 50303674720 51029208490 62805179680 66337971037 81646733584 100607349440 102058416980 125610359360 132675942074 163293467168 204116833960 265351884148 326586934336 331689855185 408233667920 530703768296 663379710370 816467335840 1061407536592 1326759420740 1632934671680 2122815073184 2653518841480 4245630146368 5307037682960 10614075365920 21228150731840
• Sum of all divisors σ(n): 54996516237888
• Sum of proper divisors (its aliquot sum) s(n): 33768365506048
• 21228150731840 is an abundant number, because the sum of its proper divisors (33768365506048) is greater than itself. Its abundance is 12540214774208

Bases of 21228150731840

• Binary: 100110100111010010000011000100011010001000000₂
• Hexadecimal: 0x134E90623440
• Base-36: 7IW2SUN28

Squares and roots of 21228150731840

• 21228150731840 squared (21228150731840²) is 450634383493719127589785600
• 21228150731840 cubed (21228150731840³) is 9566134617754460914388513519948693504000
• The square root of 21228150731840 is 4607401.7332809171
• The cube root of 21228150731840 is 27688.7948927063

Scales and comparisons

• 21,228,150,731,840 seconds is equal to 674,989 years, 27 weeks, 4 days, 37 minutes, 20 seconds.
• To count from 1 to 21,228,150,731,840 would take you about one million, six hundred eighty-seven thousand, four hundred seventy-three 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 21228150731840 cubic inches would be around 2307.4 feet tall.

Recreational maths with 21228150731840

• 21228150731840 backwards is 04813705182212
• The number of decimal digits it has is: 14
• The sum of 21228150731840's digits is 44
• More coming soon!