21494001672

Names of 21494001672

• Cardinal: 21494001672 can be written as Twenty-one billion, four hundred ninety-four million, one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1494001672 × 10¹⁰

Factors of 21494001672

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16255

Divisors of 21494001672

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 13 18 22 24 26 27 33 36 39 43 44 52 54 66 72 78 86 88 99 104 108 117 129 132 143 156 172 198 216 234 258 264 286 297 312 344 351 387 396 429 468 473 516 559 572 594 702 774 792 858 936 946 1032 1118 1144 1161 1188 1287 1404 1419 1548 1677 1716 1892 2236 2322 2376 2574 2808 2838 3096 3354 3432 3784 3861 4257 4472 4644 5031 5148 5676 6149 6708 7722 8514 9288 10062 10296 11352 12298 12771 13416 15093 15444 16183 17028 18447 20124 24596 25542 30186 30888 32366 34056 36894 40248 48549 49192 51084 55341 60372 64732 73788 97098 102168 110682 120744 129464 145647 147576 166023 178013 194196 210379 221364 291294 332046 356026 388392 420758 436941 442728 534039 582588 631137 664092 695869 712052 841516 873882 1068078 1165176 1262274 1328184 1391738 1424104 1602117 1683032 1747764 1893411 2087607 2136156 2314169 2524548 2783476 3204234 3495528 3786822 4175214 4272312 4628338 4806351 5049096 5566952 5680233 6262821 6408468 6942507 7573644 7654559 8350428 9046297 9256676 9612702 11360466 12525642 12816936 13885014 15147288 15309118 16700856 18092594 18513352 18788463 19225404 20827521 22720932 22963677 25051284 27138891 27770028 30618236 36185188 37576926 38450808 41655042 45441864 45927354 50102568 54277782 55540056 61236472 62482563 68891031 72370376 75153852 81416673 83310084 91854708 99509267 108555564 124965126 137782062 150307704 162833346 166620168 183709416 199018534 206673093 217111128 244250019 249930252 275564124 298527801 325666692 398037068 413346186 488500038 499860504 551128248 597055602 651333384 796074136 826692372 895583403 977000076 1194111204 1653384744 1791166806 1954000152 2388222408 2686750209 3582333612 5373500418 7164667224 10747000836 21494001672
• Sum of all divisors σ(n): 71779276800
• Sum of proper divisors (its aliquot sum) s(n): 50285275128
• 21494001672 is an abundant number, because the sum of its proper divisors (50285275128) is greater than itself. Its abundance is 28791273456

Bases of 21494001672

• Binary: 10100000001001001000111000000001000₂
• Hexadecimal: 0x501247008
• Base-36: 9VGZ1U0

Squares and roots of 21494001672

• 21494001672 squared (21494001672²) is 461992107875938795584
• 21494001672 cubed (21494001672³) is 9930059139136232840852162216448
• The square root of 21494001672 is 146608.3274306067
• The cube root of 21494001672 is 2780.3902662773

Scales and comparisons

• 21,494,001,672 seconds is equal to 683 years, 23 weeks, 4 hours, 1 minute, 12 seconds.
• To count from 1 to 21,494,001,672 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 21494001672 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494001672

• 21494001672 backwards is 27610049412
• 21494001672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21494001672's digits is 36
• More coming soon!