21242377872

Names of 21242377872

• Cardinal: 21242377872 can be written as Twenty-one billion, two hundred forty-two million, three hundred seventy-seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1242377872 × 10¹⁰

Factors of 21242377872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 198

Divisors of 21242377872

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 27 36 38 48 54 57 67 72 76 107 108 114 134 144 152 171 201 214 216 228 268 304 321 342 361 402 428 432 456 513 536 603 642 684 722 804 856 912 963 1026 1072 1083 1206 1273 1284 1368 1444 1608 1712 1809 1926 2033 2052 2166 2412 2546 2568 2736 2888 2889 3216 3249 3618 3819 3852 4066 4104 4332 4824 5092 5136 5776 5778 6099 6498 6859 7169 7236 7638 7704 8132 8208 8664 9648 9747 10184 11457 11556 12198 12996 13718 14338 14472 15276 15408 16264 17328 18297 19494 20368 20577 21507 22914 23112 24187 24396 25992 27436 28676 28944 30552 32528 34371 36594 38627 38988 41154 43014 45828 46224 48374 48792 51984 54872 54891 57352 61104 61731 64521 68742 72561 73188 77254 77976 82308 86028 91656 96748 97584 109744 109782 114704 115881 123462 129042 136211 137484 145122 146376 154508 155952 164616 172056 183312 185193 193496 193563 217683 219564 231762 246924 258084 272422 274968 290244 292752 309016 329232 344112 347643 370386 386992 387126 408633 435366 439128 459553 463524 493848 516168 544844 549936 580488 618032 653049 695286 733913 740772 774252 817266 870732 878256 919106 927048 987696 1032336 1042929 1089688 1160976 1225899 1306098 1378659 1390572 1467826 1481544 1548504 1634532 1741464 1838212 1854096 2085858 2179376 2201739 2451798 2588009 2612196 2757318 2781144 2935652 2963088 3097008 3269064 3482928 3676424 3677697 4135977 4171716 4403478 4903596 5176018 5224392 5514636 5562288 5871304 6538128 6605217 7352848 7355394 7764027 8271954 8343432 8806956 9807192 10352036 10448784 11029272 11742608 12407931 13210434 14710788 15528054 16543908 16686864 17613912 19614384 19815651 20704072 22058544 23292081 24815862 26420868 29421576 31056108 33087816 35227824 39631302 41408144 46584162 49172171 49631724 52841736 58843152 62112216 66175632 69876243 79262604 93168324 98344342 99263448 105683472 124224432 139752486 147516513 158525208 186336648 196688684 198526896 279504972 295033026 317050416 372673296 393377368 442549539 559009944 590066052 786754736 885099078 1118019888 1180132104 1327648617 1770198156 2360264208 2655297234 3540396312 5310594468 7080792624 10621188936 21242377872
• Sum of all divisors σ(n): 65931494400
• Sum of proper divisors (its aliquot sum) s(n): 44689116528
• 21242377872 is an abundant number, because the sum of its proper divisors (44689116528) is greater than itself. Its abundance is 23446738656

Bases of 21242377872

• Binary: 10011110010001001001111011010010000₂
• Hexadecimal: 0x4F224F690
• Base-36: 9RB5VO0

Squares and roots of 21242377872

• 21242377872 squared (21242377872²) is 451238617656835248384
• 21242377872 cubed (21242377872³) is 9585381226705425569821905358848
• The square root of 21242377872 is 145747.6513429977
• The cube root of 21242377872 is 2769.4979202695

Scales and comparisons

• 21,242,377,872 seconds is equal to 675 years, 22 weeks, 6 days, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,242,377,872 would take you about one thousand, three hundred fifty 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 21242377872 cubic inches would be around 230.8 feet tall.

Recreational maths with 21242377872

• 21242377872 backwards is 27877324212
• The number of decimal digits it has is: 11
• The sum of 21242377872's digits is 45
• More coming soon!