21246047280

Names of 21246047280

• Cardinal: 21246047280 can be written as Twenty-one billion, two hundred forty-six million, forty-seven thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.124604728 × 10¹⁰

Factors of 21246047280

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 883

Divisors of 21246047280

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 29 30 36 40 45 48 54 58 60 72 80 81 87 90 108 116 120 135 144 145 162 167 174 180 216 232 240 261 270 290 324 334 348 360 405 432 435 464 501 522 540 580 648 668 677 696 720 783 810 835 870 1002 1044 1080 1160 1296 1305 1336 1354 1392 1503 1566 1620 1670 1740 2004 2031 2088 2160 2320 2349 2505 2610 2672 2708 3006 3132 3240 3340 3385 3480 3915 4008 4062 4176 4509 4698 4843 5010 5220 5416 6012 6093 6264 6480 6680 6770 6960 7515 7830 8016 8124 9018 9396 9686 10020 10155 10440 10832 11745 12024 12186 12528 13360 13527 13540 14529 15030 15660 16248 18036 18279 18792 19372 19633 20040 20310 20880 22545 23490 24048 24215 24372 27054 27080 29058 30060 30465 31320 32496 36072 36558 37584 38744 39266 40080 40620 43587 45090 46980 48430 48744 54108 54160 54837 58116 58899 60120 60930 62640 67635 72144 72645 73116 77488 78532 81240 87174 90180 91395 93960 96860 97488 98165 108216 109674 113059 116232 117798 120240 121860 130761 135270 145290 146232 157064 162480 174348 176697 180360 182790 187920 193720 196330 216432 217935 219348 226118 232464 235596 243720 261522 270540 274185 290580 292464 294495 314128 339177 348696 353394 360720 365580 387440 392283 392660 435870 438696 452236 471192 487440 523044 530091 541080 548370 565295 581160 588990 653805 678354 697392 706788 731160 784566 785320 871740 877392 883485 904472 942384 1017531 1046088 1060182 1082160 1096740 1130590 1162320 1177980 1307610 1356708 1413576 1462320 1569132 1570640 1590273 1695885 1743480 1766970 1808944 1961415 2035062 2092176 2120364 2193480 2261180 2355960 2615220 2650455 2713416 2827152 3052593 3138264 3180546 3278711 3391770 3486960 3533940 3922830 4070124 4240728 4386960 4522360 4711920 5087655 5230440 5300910 5426832 6105186 6276528 6361092 6557422 6783540 7067880 7845660 7951365 8140248 8481456 9044720 9157779 9836133 10175310 10460880 10601820 12210372 12722184 13114844 13567080 14135760 15262965 15691320 15902730 16280496 16393555 18315558 19672266 20350620 21203640 24420744 25444368 26229688 27134160 29508399 30525930 31382640 31805460 32787110 36631116 39344532 40701240 42407280 45788895 48841488 49180665 52459376 59016798 61051860 63610920 65574220 73262232 78689064 81402480 88525197 91577790 98361330 118033596 122103720 127221840 131148440 146524464 147541995 157378128 177050394 183155580 196722660 236067192 244207440 262296880 265575591 295083990 354100788 366311160 393445320 442625985 472134384 531151182 590167980 708201576 732622320 786890640 885251970 1062302364 1180335960 1327877955 1416403152 1770503940 2124604728 2360671920 2655755910 3541007880 4249209456 5311511820 7082015760 10623023640 21246047280
• Sum of all divisors σ(n): 76905702720
• Sum of proper divisors (its aliquot sum) s(n): 55659655440
• 21246047280 is an abundant number, because the sum of its proper divisors (55659655440) is greater than itself. Its abundance is 34413608160

Bases of 21246047280

• Binary: 10011110010010111001111010000110000₂
• Hexadecimal: 0x4F25CF430
• Base-36: 9RDCJ00

Squares and roots of 21246047280

• 21246047280 squared (21246047280²) is 451394525023995398400
• 21246047280 cubed (21246047280³) is 9590349420592949368908836352000
• The square root of 21246047280 is 145760.2390228557
• The cube root of 21246047280 is 2769.6573787631

Scales and comparisons

• 21,246,047,280 seconds is equal to 675 years, 29 weeks, 7 hours, 48 minutes.
• To count from 1 to 21,246,047,280 would take you about one thousand, three hundred fifty-one 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 21246047280 cubic inches would be around 230.8 feet tall.

Recreational maths with 21246047280

• 21246047280 backwards is 08274064212
• 21246047280 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21246047280's digits is 36
• More coming soon!