21031956968940

Names of 21031956968940

• Cardinal: 21031956968940 can be written as Twenty-one trillion, thirty-one billion, nine hundred fifty-six million, nine hundred sixty-eight thousand, nine hundred forty.

Scientific notation

• Scientific notation: 2.103195696894 × 10¹³

Factors of 21031956968940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 222

Divisors of 21031956968940

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 103 108 109 135 162 180 206 218 270 309 324 327 405 412 436 515 540 545 618 654 810 927 981 1030 1090 1236 1308 1545 1620 1635 1854 1962 2060 2180 2781 2943 3090 3270 3708 3924 4635 4905 5562 5886 6180 6540 8343 8829 9270 9810 10609 11124 11227 11772 11881 13905 14715 16686 17658 18540 19620 21218 22454 23762 27810 29430 31827 33372 33681 35316 35643 41715 42436 44145 44908 47524 53045 55620 56135 58860 59405 63654 67362 71286 83430 88290 95481 101043 106090 106929 112270 118810 127308 134724 142572 159135 166860 168405 176580 178215 190962 202086 212180 213858 224540 237620 286443 303129 318270 320787 336810 356430 381924 404172 427716 477405 505215 534645 572886 606258 636540 641574 673620 712860 859329 909387 954810 962361 1010430 1069290 1092727 1145772 1156381 1212516 1223743 1283148 1432215 1515645 1603935 1718658 1818774 1909620 1924722 2020860 2138580 2185454 2312762 2447486 2864430 3031290 3207870 3278181 3437316 3469143 3637548 3671229 3849444 4296645 4370908 4546935 4625524 4811805 4894972 5463635 5728860 5781905 6062580 6118715 6415740 6556362 6938286 7342458 8593290 9093870 9623610 9834543 10407429 10927270 11013687 11563810 12237430 13112724 13876572 14684916 16390905 17186580 17345715 18187740 18356145 19247220 19669086 20814858 21854540 22027374 23127620 24474860 29503629 31222287 32781810 33041061 34691430 36712290 39338172 41629716 44054748 49172715 52037145 55068435 59007258 62444574 65563620 66082122 69382860 73424580 88510887 93666861 98345430 99123183 104074290 110136870 118014516 119107243 124889148 126045529 132164244 147518145 156111435 165205305 177021774 187333722 196690860 198246366 208148580 220273740 238214486 252091058 295036290 312222870 330410610 354043548 357321729 374667444 378136587 396492732 442554435 468334305 476428972 495615915 504182116 590072580 595536215 624445740 630227645 660821220 714643458 756273174 885108870 936668610 991231830 1071965187 1134409761 1191072430 1260455290 1429286916 1512546348 1770217740 1786608645 1873337220 1890682935 1982463660 2143930374 2268819522 2382144860 2520910580 3215895561 3403229283 3573217290 3781365870 4287860748 4537639044 5359825935 5672048805 6431791122 6806458566 7146434580 7562731740 9647686683 10209687849 10719651870 11344097610 12863582244 12982689487 13612917132 16079477805 17016146415 19295373366 20419375698 21439303740 22688195220 25965378974 32158955610 34032292830 38590746732 38948068461 40838751396 48238433415 51048439245 51930757948 64317911220 64913447435 68064585660 77896136922 96476866830 102096878490 116844205383 129826894870 155792273844 192953733660 194740342305 204193756980 233688410766 259653789740 350532616149 389480684610 467376821532 584221026915 701065232298 778961369220 1051597848447 1168442053830 1402130464596 1752663080745 2103195696894 2336884107660 3505326161490 4206391393788 5257989242235 7010652322980 10515978484470 21031956968940
• Sum of all divisors σ(n): 67241715821280
• Sum of proper divisors (its aliquot sum) s(n): 46209758852340
• 21031956968940 is an abundant number, because the sum of its proper divisors (46209758852340) is greater than itself. Its abundance is 25177801883400

Bases of 21031956968940

• Binary: 100110010000011100010010100101111010111101100₂
• Hexadecimal: 0x1320E252F5EC
• Base-36: 7GDY45ER0

Squares and roots of 21031956968940

• 21031956968940 squared (21031956968940²) is 442343213943343832124723600
• 21031956968940 cubed (21031956968940³) is 9303343441159027688382145966291284984000
• The square root of 21031956968940 is 4586061.1606192083
• The cube root of 21031956968940 is 27603.2294096907

Scales and comparisons

• 21,031,956,968,940 seconds is equal to 668,751 years, 9 weeks, 21 hours, 9 minutes.
• To count from 1 to 21,031,956,968,940 would take you about one million, six hundred seventy-one thousand, eight hundred seventy-seven 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 21031956968940 cubic inches would be around 2300.3 feet tall.

Recreational maths with 21031956968940

• 21031956968940 backwards is 04986965913012
• The number of decimal digits it has is: 14
• The sum of 21031956968940's digits is 63
• More coming soon!