21491229375

Names of 21491229375

• Cardinal: 21491229375 can be written as Twenty-one billion, four hundred ninety-one million, two hundred twenty-nine thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 2.1491229375 × 10¹⁰

Factors of 21491229375

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 114

Divisors of 21491229375

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 5 7 9 11 15 21 25 29 33 35 45 55 59 63 75 77 87 99 105 125 145 165 175 177 203 225 231 261 275 295 315 319 375 385 413 435 495 525 531 609 625 649 693 725 825 841 875 885 957 1015 1125 1155 1239 1305 1375 1475 1575 1595 1711 1827 1875 1925 1947 2065 2175 2233 2475 2523 2625 2655 2871 3045 3245 3465 3625 3717 4125 4205 4375 4425 4543 4785 5075 5133 5625 5775 5841 5887 6195 6525 6699 6875 7375 7569 7875 7975 8555 9135 9251 9625 9735 10325 10875 11165 11977 12375 12615 13125 13275 13629 14355 15225 15399 16225 17325 17661 18125 18585 18821 20097 20625 21025 22125 22715 23925 25375 25665 27753 28875 29205 29435 30975 32625 33495 35931 36875 37845 39375 39875 40887 42775 45675 46255 48125 48675 49619 51625 52983 54375 55825 56463 59885 61875 63075 64757 66375 68145 71775 76125 76995 81125 83259 86625 88305 92925 94105 100485 105125 107793 110625 113575 119625 126875 128325 131747 138765 144375 146025 147175 148857 154875 163125 167475 169389 179655 189225 194271 199375 204435 213875 228375 231275 243375 248095 258125 264915 279125 282315 299425 315375 323785 331875 340725 347333 358875 380625 384975 395241 405625 416295 433125 441525 446571 464625 470525 502425 525625 538965 545809 567875 582813 598125 641625 658735 693825 730125 735875 744285 774375 837375 846945 898275 946125 971355 1022175 1041999 1069375 1141875 1156375 1185723 1216875 1240475 1324575 1395625 1411575 1497125 1576875 1618925 1637427 1703625 1736665 1794375 1924875 1976205 2081475 2207625 2232855 2323125 2352625 2512125 2694825 2729045 2839375 2914065 3125997 3208125 3293675 3469125 3650625 3679375 3721425 3820663 4186875 4234725 4491375 4730625 4856775 4912281 5110875 5209995 5781875 5928615 6202375 6622875 7057875 7485625 8094625 8187135 8518125 8683325 9624375 9881025 10407375 11038125 11164275 11461989 11763125 12560625 13474125 13645225 14570325 15629985 16468375 17345625 18607125 19103315 21173625 22456875 24283875 24561405 25554375 26049975 29643075 31011875 33114375 34385967 35289375 40473125 40935675 43416625 49405125 52036875 55821375 57309945 67370625 68226125 72851625 78149925 82341875 93035625 95516575 105868125 121419375 122807025 130249875 148215375 171929835 204678375 217083125 247025625 279106875 286549725 341130625 364258125 390749625 477582875 614035125 651249375 741076875 859649175 1023391875 1432748625 1953748125 2387914375 3070175625 4298245875 7163743125 21491229375
• Sum of all divisors σ(n): 50937194880
• Sum of proper divisors (its aliquot sum) s(n): 29445965505
• 21491229375 is an abundant number, because the sum of its proper divisors (29445965505) is greater than itself. Its abundance is 7954736130

Bases of 21491229375

• Binary: 10100000000111110100010001010111111₂
• Hexadecimal: 0x500FA22BF
• Base-36: 9VFBMPR

Squares and roots of 21491229375

• 21491229375 squared (21491229375²) is 461872940048862890625
• 21491229375 cubed (21491229375³) is 9926217296695736090347412109375
• The square root of 21491229375 is 146598.8723524161
• The cube root of 21491229375 is 2780.2707228635

Scales and comparisons

• 21,491,229,375 seconds is equal to 683 years, 18 weeks, 3 days, 1 hour, 56 minutes, 15 seconds.
• To count from 1 to 21,491,229,375 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 21491229375 cubic inches would be around 231.7 feet tall.

Recreational maths with 21491229375

• 21491229375 backwards is 57392219412
• 21491229375 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21491229375's digits is 45
• More coming soon!