21471836672

Names of 21471836672

• Cardinal: 21471836672 can be written as Twenty-one billion, four hundred seventy-one million, eight hundred thirty-six thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1471836672 × 10¹⁰

Factors of 21471836672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1370

Divisors of 21471836672

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 4 8 11 13 16 17 22 26 32 34 44 52 64 68 88 104 128 136 143 169 176 187 208 221 256 272 286 338 352 374 416 442 512 544 572 676 704 748 832 884 1088 1144 1327 1352 1408 1496 1664 1768 1859 2176 2288 2431 2654 2704 2816 2873 2992 3328 3536 3718 4352 4576 4862 5308 5408 5632 5746 5984 6656 7072 7436 8704 9152 9724 10616 10816 11492 11968 14144 14597 14872 17251 18304 19448 21232 21632 22559 22984 23936 28288 29194 29744 31603 34502 36608 38896 42464 43264 45118 45968 47872 56576 58388 59488 63206 69004 73216 77792 84928 86528 90236 91936 95744 113152 116776 118976 126412 138008 155584 169856 180472 183872 189761 224263 233552 237952 248149 252824 276016 293267 311168 339712 360944 367744 379522 448526 467104 475904 496298 505648 552032 586534 622336 679424 721888 735488 759044 897052 934208 951808 992596 1011296 1104064 1173068 1244672 1443776 1470976 1518088 1794104 1868416 1985192 2022592 2208128 2346136 2466893 2887552 3036176 3225937 3588208 3736832 3812471 3970384 4045184 4416256 4692272 4933786 5775104 6072352 6451874 7176416 7473664 7624942 7940768 8090368 8832512 9384544 9867572 11550208 12144704 12903748 14352832 15249884 15881536 16180736 18769088 19735144 24289408 25807496 28705664 30499768 31763072 37538176 39470288 41937181 48578816 51614992 57411328 60999536 63526144 75076352 78940576 83874362 97157632 103229984 114822656 121999072 127052288 150152704 157881152 167748724 206459968 243998144 315762304 335497448 412919936 487996288 631524608 670994896 825839872 975992576 1263049216 1341989792 1651679744 1951985152 2683979584 5367959168 10735918336 21471836672
• Sum of all divisors σ(n): 53700527232
• Sum of proper divisors (its aliquot sum) s(n): 32228690560
• 21471836672 is an abundant number, because the sum of its proper divisors (32228690560) is greater than itself. Its abundance is 10756853888

Bases of 21471836672

• Binary: 10011111111110100100011101000000000₂
• Hexadecimal: 0x4FFD23A00
• Base-36: 9V3RZ7K

Squares and roots of 21471836672

• 21471836672 squared (21471836672²) is 461039770069044035584
• 21471836672 cubed (21471836672³) is 9899370642218947695235404136448
• The square root of 21471836672 is 146532.7153641805
• The cube root of 21471836672 is 2779.4342081317

Scales and comparisons

• 21,471,836,672 seconds is equal to 682 years, 38 weeks, 2 days, 15 hours, 4 minutes, 32 seconds.
• To count from 1 to 21,471,836,672 would take you about one thousand, three hundred sixty-five 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 21471836672 cubic inches would be around 231.6 feet tall.

Recreational maths with 21471836672

• 21471836672 backwards is 27663817412
• The number of decimal digits it has is: 11
• The sum of 21471836672's digits is 47
• More coming soon!