21087792320

Names of 21087792320

• Cardinal: 21087792320 can be written as Twenty-one billion, eighty-seven million, seven hundred ninety-two thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.108779232 × 10¹⁰

Factors of 21087792320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 805

Divisors of 21087792320

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 79 80 112 140 158 160 224 269 280 316 320 395 443 448 538 553 560 632 790 886 1076 1106 1120 1264 1345 1580 1772 1883 2152 2212 2215 2240 2528 2690 2765 3101 3160 3544 3766 4304 4424 4430 5056 5380 5530 6202 6320 7088 7532 8608 8848 8860 9415 10760 11060 12404 12640 14176 15064 15505 17216 17696 17720 18830 21251 21520 22120 24808 25280 28352 30128 31010 34997 35392 35440 37660 42502 43040 44240 49616 60256 62020 69994 70880 75320 85004 86080 88480 99232 106255 119167 120512 124040 139988 141760 148757 150640 170008 174985 176960 198464 212510 238334 244979 248080 279976 297514 301280 340016 349970 425020 476668 489958 496160 559952 595028 595835 602560 680032 699940 743785 834169 850040 953336 979916 992320 1119904 1190056 1191670 1224895 1360064 1399880 1487570 1668338 1700080 1906672 1959832 2239808 2380112 2383340 2449790 2799760 2975140 3336676 3400160 3813344 3919664 4170845 4760224 4766680 4899580 5599520 5950280 6673352 6800320 7626688 7839328 8341690 9414193 9520448 9533360 9799160 11199040 11900560 13346704 15678656 16683380 18828386 19066720 19598320 23801120 26693408 33366760 37656772 38133440 39196640 47070965 47602240 53386816 65899351 66733520 75313544 78393280 94141930 131798702 133467040 150627088 188283860 263597404 266934080 301254176 329496755 376567720 527194808 602508352 658993510 753135440 1054389616 1317987020 1506270880 2108779232 2635974040 3012541760 4217558464 5271948080 10543896160 21087792320
• Sum of all divisors σ(n): 58463078400
• Sum of proper divisors (its aliquot sum) s(n): 37375286080
• 21087792320 is an abundant number, because the sum of its proper divisors (37375286080) is greater than itself. Its abundance is 16287493760

Bases of 21087792320

• Binary: 10011101000111011100010110011000000₂
• Hexadecimal: 0x4E8EE2CC0
• Base-36: 9OR4KOW

Squares and roots of 21087792320

• 21087792320 squared (21087792320²) is 444694984931450982400
• 21087792320 cubed (21087792320³) is 9377635487979967753111175168000
• The square root of 21087792320 is 145216.3638162035
• The cube root of 21087792320 is 2762.7634717143

Scales and comparisons

• 21,087,792,320 seconds is equal to 670 years, 27 weeks, 2 days, 16 hours, 5 minutes, 20 seconds.
• To count from 1 to 21,087,792,320 would take you about one thousand, three hundred forty-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 21087792320 cubic inches would be around 230.2 feet tall.

Recreational maths with 21087792320

• 21087792320 backwards is 02329778012
• The number of decimal digits it has is: 11
• The sum of 21087792320's digits is 41
• More coming soon!