21494894400

Names of 21494894400

• Cardinal: 21494894400 can be written as Twenty-one billion, four hundred ninety-four million, eight hundred ninety-four thousand, four hundred.

Scientific notation

• Scientific notation: 2.14948944 × 10¹⁰

Factors of 21494894400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 71098

Divisors of 21494894400

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 27 28 30 32 35 36 40 42 45 48 50 54 56 60 63 64 70 72 75 80 84 90 96 100 105 108 112 120 126 135 140 144 150 160 168 175 180 189 192 200 210 216 224 225 240 252 270 280 288 300 315 320 336 350 360 378 400 420 432 448 450 480 504 525 540 560 576 600 630 672 675 700 720 756 800 840 864 900 945 960 1008 1050 1080 1120 1200 1260 1344 1350 1400 1440 1512 1575 1600 1680 1728 1800 1890 2016 2100 2160 2240 2400 2520 2700 2800 2880 3024 3150 3360 3600 3780 4032 4200 4320 4725 4800 5040 5400 5600 6048 6300 6720 7200 7560 8400 8640 9450 10080 10800 11200 12096 12600 14400 15120 16800 18900 20160 21600 25200 30240 33600 37800 43200 50400 60480 71081 75600 100800 142162 151200 213243 284324 302400 355405 426486 497567 568648 639729 710810 852972 995134 1066215 1137296 1279458 1421620 1492701 1705944 1777025 1919187 1990268 2132430 2274592 2487835 2558916 2843240 2985402 3198645 3411888 3554050 3838374 3980536 4264860 4478103 4549184 4975670 5117832 5331075 5686480 5970804 6397290 6823776 7108100 7463505 7676748 7961072 8529720 8956206 9595935 9951340 10235664 10662150 11372960 11941608 12439175 12794580 13434309 13647552 14216200 14927010 15353496 15922144 15993225 17059440 17912412 19191870 19902680 20471328 21324300 22390515 22745920 23883216 24878350 25589160 26868618 28432400 29854020 30706992 31844288 31986450 34118880 35824824 37317525 38383740 39805360 40942656 42648600 44781030 47766432 47979675 49756700 51178320 53737236 56864800 59708040 61413984 63972900 67171545 68237760 71649648 74635050 76767480 79610720 85297200 89562060 95532864 95959350 99513400 102356640 107474472 111952575 113729600 119416080 122827968 127945800 134343090 143299296 149270100 153534960 159221440 170594400 179124120 191918700 199026800 204713280 214948944 223905150 238832160 255891600 268686180 286598592 298540200 307069920 335857725 341188800 358248240 383837400 398053600 429897888 447810300 477664320 511783200 537372360 597080400 614139840 671715450 716496480 767674800 796107200 859795776 895620600 1023566400 1074744720 1194160800 1343430900 1432992960 1535349600 1791241200 2149489440 2388321600 2686861800 3070699200 3582482400 4298978880 5373723600 7164964800 10747447200 21494894400
• Sum of all divisors σ(n): 89551946880
• Sum of proper divisors (its aliquot sum) s(n): 68057052480
• 21494894400 is an abundant number, because the sum of its proper divisors (68057052480) is greater than itself. Its abundance is 46562158080

Bases of 21494894400

• Binary: 10100000001001100100000111101000000₂
• Hexadecimal: 0x501320F40
• Base-36: 9VHI6O0

Squares and roots of 21494894400

• 21494894400 squared (21494894400²) is 462030485267151360000
• 21494894400 cubed (21494894400³) is 9931296490398174272016384000000
• The square root of 21494894400 is 146611.3720009467
• The cube root of 21494894400 is 2780.4287591543

Scales and comparisons

• 21,494,894,400 seconds is equal to 683 years, 24 weeks, 3 days, 12 hours.
• To count from 1 to 21,494,894,400 would take you about one thousand, three hundred sixty-six 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 21494894400 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494894400

• 21494894400 backwards is 00449849412
• 21494894400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21494894400's digits is 45
• More coming soon!