21677640816

Names of 21677640816

• Cardinal: 21677640816 can be written as Twenty-one billion, six hundred seventy-seven million, six hundred forty thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.1677640816 × 10¹⁰

Factors of 21677640816

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 417

Divisors of 21677640816

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 19 24 26 31 38 39 48 52 57 62 76 78 93 104 114 124 152 156 169 186 208 228 247 248 304 312 338 349 372 403 456 494 496 507 589 624 676 698 741 744 806 912 988 1014 1047 1178 1209 1352 1396 1482 1488 1612 1767 1976 2028 2094 2197 2356 2418 2704 2792 2964 3211 3224 3534 3952 4056 4188 4394 4537 4712 4836 5239 5584 5928 6422 6448 6591 6631 7068 7657 8112 8376 8788 9074 9424 9633 9672 10478 10819 11856 12844 13182 13262 13611 14136 15314 15717 16752 17576 18148 19266 19344 19893 20956 21638 22971 25688 26364 26524 27222 28272 30628 31434 32457 35152 36296 38532 39786 41743 41912 43276 45942 51376 52728 53048 54444 58981 61256 62868 64914 68107 72592 77064 79572 83486 83824 86203 86552 91884 99541 105456 106096 108888 117962 122512 125229 125736 129828 136214 140647 154128 159144 166972 172406 173104 176943 183768 199082 204321 205561 217776 235924 250458 251472 258609 259656 272428 281294 298623 318288 333944 344812 353886 367536 398164 408642 411122 421941 471848 500916 517218 519312 544856 562588 597246 616683 667888 689624 707772 766753 796328 817284 822244 843882 943696 1001832 1034436 1089712 1120639 1125176 1194492 1233366 1294033 1379248 1415544 1533506 1592656 1634568 1644488 1687764 1828411 2003664 2068872 2241278 2250352 2300259 2388984 2466732 2588066 2672293 2831088 3067012 3269136 3288976 3361917 3375528 3656822 3882099 4137744 4482556 4600518 4777968 4933464 5176132 5344586 5485233 6134024 6723834 6751056 7313644 7764198 8016879 8965112 9201036 9866928 10352264 10689172 10970466 12268048 13447668 14568307 14627288 15528396 16033758 17930224 18402072 20704528 21378344 21940932 23769343 26895336 29136614 29254576 31056792 32067516 34739809 36804144 42756688 43704921 43881864 47538686 53790672 58273228 62113584 64135032 69479618 71308029 87409842 87763728 95077372 104219427 116546456 128270064 138959236 142616058 174819684 190154744 208438854 233092912 277918472 285232116 349639368 380309488 416877708 451617517 555836944 570464232 699278736 833755416 903235034 1140928464 1354852551 1667510832 1806470068 2709705102 3612940136 5419410204 7225880272 10838820408 21677640816
• Sum of all divisors σ(n): 66106880000
• Sum of proper divisors (its aliquot sum) s(n): 44429239184
• 21677640816 is an abundant number, because the sum of its proper divisors (44429239184) is greater than itself. Its abundance is 22751598368

Bases of 21677640816

• Binary: 10100001100000101101000110001110000₂
• Hexadecimal: 0x50C168C70
• Base-36: 9YIB2PC

Squares and roots of 21677640816

• 21677640816 squared (21677640816²) is 469920111347509145856
• 21677640816 cubed (21677640816³) is 10186759386006029020141322858496
• The square root of 21677640816 is 147233.2870515359
• The cube root of 21677640816 is 2788.2861317927

Scales and comparisons

• 21,677,640,816 seconds is equal to 689 years, 14 weeks, 4 days, 14 hours, 53 minutes, 36 seconds.
• To count from 1 to 21,677,640,816 would take you about one thousand, three 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 21677640816 cubic inches would be around 232.4 feet tall.

Recreational maths with 21677640816

• 21677640816 backwards is 61804677612
• 21677640816 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21677640816's digits is 48
• More coming soon!