21359171680

Names of 21359171680

• Cardinal: 21359171680 can be written as Twenty-one billion, three hundred fifty-nine million, one hundred seventy-one thousand, six hundred eighty.

Scientific notation

• Scientific notation: 2.135917168 × 10¹⁰

Factors of 21359171680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 422

Divisors of 21359171680

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 70 77 80 88 110 112 121 140 154 160 176 220 224 242 280 308 352 385 397 440 484 560 605 616 770 794 847 880 968 1120 1210 1232 1540 1588 1694 1760 1936 1985 2420 2464 2779 3080 3176 3388 3872 3970 4235 4367 4840 5558 6160 6352 6776 7940 8470 8734 9680 11116 12320 12704 13552 13895 15880 16940 17468 19360 21835 22232 27104 27790 30569 31760 33880 34936 43670 44464 48037 55580 61138 63520 67760 69872 87340 88928 96074 111160 122276 135520 139744 152845 157609 174680 192148 222320 240185 244552 305690 315218 336259 349360 384296 444640 480370 489104 611380 630436 672518 698720 768592 788045 960740 978208 1103263 1222760 1260872 1345036 1537184 1576090 1681295 1733699 1921480 2206526 2445520 2521744 2690072 3152180 3362590 3467398 3842960 4413052 4891040 5043488 5380144 5516315 6304360 6725180 6934796 7685920 8668495 8826104 10760288 11032630 12135893 12608720 13450360 13869592 17336990 17652208 19070689 22065260 24271786 25217440 26900720 27739184 34673980 35304416 38141378 44130520 48543572 53801440 55478368 60679465 69347960 76282756 88261040 95353445 97087144 121358930 133494823 138695920 152565512 176522080 190706890 194174288 242717860 266989646 277391840 305131024 381413780 388348576 485435720 533979292 610262048 667474115 762827560 970871440 1067958584 1334948230 1525655120 1941742880 2135917168 2669896460 3051310240 4271834336 5339792920 10679585840 21359171680
• Sum of all divisors σ(n): 63549151344
• Sum of proper divisors (its aliquot sum) s(n): 42189979664
• 21359171680 is an abundant number, because the sum of its proper divisors (42189979664) is greater than itself. Its abundance is 20830807984

Bases of 21359171680

• Binary: 10011111001000110110001100001100000₂
• Hexadecimal: 0x4F91B1860
• Base-36: 9T8P6CG

Squares and roots of 21359171680

• 21359171680 squared (21359171680²) is 456214214855714022400
• 21359171680 cubed (21359171680³) is 9744357737959602233424965632000
• The square root of 21359171680 is 146147.7734349723
• The cube root of 21359171680 is 2774.5643524645

Scales and comparisons

• 21,359,171,680 seconds is equal to 679 years, 8 weeks, 15 hours, 14 minutes, 40 seconds.
• To count from 1 to 21,359,171,680 would take you about one thousand, three hundred fifty-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 21359171680 cubic inches would be around 231.2 feet tall.

Recreational maths with 21359171680

• 21359171680 backwards is 08617195312
• The number of decimal digits it has is: 11
• The sum of 21359171680's digits is 43
• More coming soon!