21555132144

Names of 21555132144

• Cardinal: 21555132144 can be written as Twenty-one billion, five hundred fifty-five million, one hundred thirty-two thousand, one hundred forty-four.

Scientific notation

• Scientific notation: 2.1555132144 × 10¹⁰

Factors of 21555132144

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 114

Divisors of 21555132144

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 49 52 56 78 84 89 91 98 104 112 147 156 168 178 182 196 208 267 273 294 312 336 356 364 392 534 546 588 623 624 637 712 728 784 1068 1092 1157 1176 1246 1274 1424 1456 1869 1911 2136 2184 2314 2352 2492 2548 3471 3738 3822 4272 4361 4368 4628 4984 5096 6942 7476 7644 7921 8099 8722 9256 9968 10192 13083 13884 14952 15288 15842 16198 17444 18512 23763 24297 26166 27768 29904 30576 31684 32396 34888 47526 48594 52332 55447 55536 56693 63368 64792 69776 95052 97188 102973 104664 110894 113386 126736 129584 166341 170079 190104 194376 205946 209328 221788 226772 308919 332682 340158 380208 388129 388752 411892 443576 453544 617838 665364 680316 704969 720811 776258 823784 887152 907088 1164387 1235676 1330728 1360632 1409938 1441622 1552516 1647568 2114907 2162433 2328774 2471352 2661456 2721264 2819876 2883244 3105032 4229814 4324866 4657548 4934783 4942704 5045677 5639752 5766488 6210064 8459628 8649732 9164597 9315096 9869566 10091354 11279504 11532976 14804349 15137031 16919256 17299464 18329194 18630192 19739132 20182708 27493791 29608698 30274062 33838512 34543481 34598928 36658388 39478264 40365416 54987582 59217396 60548124 64152179 69086962 73316776 78956528 80730832 103630443 109975164 118434792 121096248 128304358 138173924 146633552 192456537 207260886 219950328 236869584 242192496 256608716 276347848 384913074 414521772 439900656 449065253 513217432 552695696 769826148 829043544 898130506 1026434864 1347195759 1539652296 1658087088 1796261012 2694391518 3079304592 3592522024 5388783036 7185044048 10777566072 21555132144
• Sum of all divisors σ(n): 70550796960
• Sum of proper divisors (its aliquot sum) s(n): 48995664816
• 21555132144 is an abundant number, because the sum of its proper divisors (48995664816) is greater than itself. Its abundance is 27440532672

Bases of 21555132144

• Binary: 10100000100110010010011011011110000₂
• Hexadecimal: 0x504C936F0
• Base-36: 9WHDAEO

Squares and roots of 21555132144

• 21555132144 squared (21555132144²) is 464623721745302036736
• 21555132144 cubed (21555132144³) is 10015025719457071713036822441984
• The square root of 21555132144 is 146816.6616702613
• The cube root of 21555132144 is 2783.0236473431

Scales and comparisons

• 21,555,132,144 seconds is equal to 685 years, 20 weeks, 16 hours, 42 minutes, 24 seconds.
• To count from 1 to 21,555,132,144 would take you about one thousand, three hundred seventy 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 21555132144 cubic inches would be around 231.9 feet tall.

Recreational maths with 21555132144

• 21555132144 backwards is 44123155512
• The number of decimal digits it has is: 11
• The sum of 21555132144's digits is 33
• More coming soon!