21086914320

Names of 21086914320

• Cardinal: 21086914320 can be written as Twenty-one billion, eighty-six million, nine hundred fourteen thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.108691432 × 10¹⁰

Factors of 21086914320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6721

Divisors of 21086914320

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 61 72 73 80 90 120 122 144 146 180 183 219 240 244 292 305 360 365 366 438 488 549 584 610 657 720 730 732 876 915 976 1095 1098 1168 1220 1314 1460 1464 1752 1830 2190 2196 2440 2628 2745 2920 2928 3285 3504 3660 4380 4392 4453 4880 5256 5490 5840 6570 6577 7320 8760 8784 8906 10512 10980 13140 13154 13359 14640 17520 17812 19731 21960 22265 26280 26308 26718 32885 35624 39462 40077 43920 44530 52560 52616 53436 59193 65770 66795 71248 78924 80154 89060 98655 105232 106872 118386 131540 133590 157848 160308 178120 197310 200385 213744 236772 263080 267180 295965 315696 320616 356240 394620 400770 401197 473544 480121 526160 534360 591930 641232 789240 801540 802394 947088 960242 1068720 1183860 1203591 1440363 1578480 1603080 1604788 1920484 2005985 2367720 2400605 2407182 2880726 3206160 3209576 3610773 3840968 4011970 4321089 4735440 4801210 4814364 5761452 6017955 6419152 7201815 7221546 7681936 8023940 8642178 9602420 9628728 11522904 12035910 14403630 14443092 16047880 17284356 18053865 19204840 19257456 21605445 23045808 24071820 28807260 28886184 29287381 32095760 34568712 36107730 38409680 43210890 48143640 57614520 57772368 58574762 69137424 72215460 86421780 87862143 96287280 115229040 117149524 144430920 146436905 172843560 175724286 234299048 263586429 288861840 292873810 345687120 351448572 439310715 468598096 527172858 585747620 702897144 878621430 1054345716 1171495240 1317932145 1405794288 1757242860 2108691432 2342990480 2635864290 3514485720 4217382864 5271728580 7028971440 10543457160 21086914320
• Sum of all divisors σ(n): 72974911152
• Sum of proper divisors (its aliquot sum) s(n): 51887996832
• 21086914320 is an abundant number, because the sum of its proper divisors (51887996832) is greater than itself. Its abundance is 30801082512

Bases of 21086914320

• Binary: 10011101000111000001100011100010000₂
• Hexadecimal: 0x4E8E0C710
• Base-36: 9OQLR80

Squares and roots of 21086914320

• 21086914320 squared (21086914320²) is 444657955539021062400
• 21086914320 cubed (21086914320³) is 9376464210157706559504173568000
• The square root of 21086914320 is 145213.3407094541
• The cube root of 21086914320 is 2762.7251282031

Scales and comparisons

• 21,086,914,320 seconds is equal to 670 years, 25 weeks, 6 days, 12 hours, 12 minutes.
• To count from 1 to 21,086,914,320 would take you about one thousand, three hundred forty 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 21086914320 cubic inches would be around 230.2 feet tall.

Recreational maths with 21086914320

• 21086914320 backwards is 02341968012
• 21086914320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21086914320's digits is 36
• More coming soon!