21285473041872

Names of 21285473041872

• Cardinal: 21285473041872 can be written as Twenty-one trillion, two hundred eighty-five billion, four hundred seventy-three million, forty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 2.1285473041872 × 10¹³

Factors of 21285473041872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 234

Divisors of 21285473041872

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 89 104 117 127 144 156 178 208 234 254 267 312 356 381 468 508 534 624 712 762 801 936 1016 1068 1143 1157 1424 1524 1602 1651 1872 2032 2136 2286 2314 3048 3204 3302 3471 4272 4572 4628 4953 6096 6408 6604 6942 7921 9144 9256 9906 10413 11303 12816 13208 13884 14859 15842 16129 18288 18512 19812 20826 22606 23763 26416 27768 29718 31684 32258 33909 39624 41652 45212 47526 48387 55536 59436 63368 64516 67818 71289 79248 83304 90424 95052 96774 101727 102973 118872 126736 129032 135636 142578 145161 146939 166608 180848 190104 193548 203454 205946 209677 237744 258064 271272 285156 290322 293878 308919 380208 387096 406908 411892 419354 440817 542544 570312 580644 587756 617838 629031 704969 774192 813816 823784 838708 881634 926757 1005967 1140624 1161288 1175512 1235676 1258062 1322451 1409938 1435481 1627632 1647568 1677416 1763268 1853514 1887093 2011934 2114907 2322576 2351024 2471352 2516124 2644902 2819876 2870962 3017901 3354832 3526536 3707028 3774186 4023868 4229814 4306443 4942704 5032248 5289804 5639752 5741924 6035802 6344721 7053072 7414056 7548372 8047736 8459628 8612886 9053703 9164597 10064496 10579608 11279504 11483848 12071604 12689442 12919329 13077571 14828112 15096744 16095472 16919256 17225772 18107406 18329194 18661253 21159216 22967696 24143208 25378884 25838658 26155142 27493791 30193488 33838512 34451544 36214812 36658388 37322506 39232713 48286416 50757768 51677316 52310284 54987582 55983759 68903088 72429624 73316776 74645012 78465426 82481373 89531063 101515536 103354632 104620568 109975164 111967518 117698139 127757809 144859248 146633552 149290024 156930852 164962746 167951277 179062126 206709264 209241136 219950328 223935036 235396278 255515618 268593189 298580048 313861704 329925492 335902554 358124252 383273427 439900656 447870072 470792556 511031236 537186378 627723408 659850984 671805108 716248504 766546854 805779567 895740144 941585112 1022062472 1074372756 1149820281 1163903819 1319701968 1343610216 1432497008 1533093708 1611559134 1660851517 1883170224 2044124944 2148745512 2299640562 2327807638 2687220432 3066187416 3223118268 3321703034 3491711457 4297491024 4599281124 4655615276 4982554551 6132374832 6446236536 6643406068 6983422914 9198562248 9311230552 9965109102 10475134371 11370445001 12892473072 13286812136 13966845828 14947663653 18397124496 18622461104 19930218204 20950268742 22740890002 26573624272 27933691656 29895327306 34111335003 39860436408 41900537484 45481780004 55867383312 59790654612 68222670006 79720872816 83801074968 90963560008 102334005009 119581309224 136445340012 147815785013 167602149936 181927120016 204668010018 239162618448 272890680024 295631570026 409336020036 443447355039 545781360048 591263140052 818672040072 886894710078 1182526280104 1330342065117 1637344080144 1773789420156 2365052560208 2660684130234 3547578840312 5321368260468 7095157680624 10642736520936 21285473041872
• Sum of all divisors σ(n): 65395947282120
• Sum of proper divisors (its aliquot sum) s(n): 44110474240248
• 21285473041872 is an abundant number, because the sum of its proper divisors (44110474240248) is greater than itself. Its abundance is 22825001198376

Bases of 21285473041872

• Binary: 100110101101111101001000011110011110111010000₂
• Hexadecimal: 0x135BE90F3DD0
• Base-36: 7JMET2OK0

Squares and roots of 21285473041872

• 21285473041872 squared (21285473041872²) is 453071362616259652665264384
• 21285473041872 cubed (21285473041872³) is 9643838275012608293263887259893582286848
• The square root of 21285473041872 is 4613618.2158769921
• The cube root of 21285473041872 is 27713.6951492947

Scales and comparisons

• 21,285,473,041,872 seconds is equal to 676,812 years, 10 weeks, 3 days, 16 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,285,473,041,872 would take you about one million, six hundred ninety-two thousand and thirty 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 21285473041872 cubic inches would be around 2309.5 feet tall.

Recreational maths with 21285473041872

• 21285473041872 backwards is 27814037458212
• The number of decimal digits it has is: 14
• The sum of 21285473041872's digits is 54
• More coming soon!