21372489684

Names of 21372489684

• Cardinal: 21372489684 can be written as Twenty-one billion, three hundred seventy-two million, four hundred eighty-nine thousand, six hundred eighty-four.

Scientific notation

• Scientific notation: 2.1372489684 × 10¹⁰

Factors of 21372489684

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 434

Divisors of 21372489684

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 78 84 91 108 117 126 156 169 182 189 234 252 273 338 351 364 378 409 468 507 546 676 702 756 818 819 1014 1092 1183 1227 1404 1521 1636 1638 2028 2366 2454 2457 2863 3042 3276 3549 3681 4563 4732 4908 4914 5317 5726 6084 7098 7362 8589 9126 9828 10634 10647 11043 11452 14196 14724 15951 17178 18252 21268 21294 22086 25767 31902 31941 34356 37219 42588 44172 47853 51534 63804 63882 69121 74438 77301 95706 103068 111657 127764 138242 143559 148876 154602 167281 191412 207363 223314 276484 287118 309204 334562 334971 414726 446628 483847 501843 574236 622089 669124 669942 829452 967694 1003686 1004913 1170967 1244178 1339884 1451541 1505529 1866267 1935388 2007372 2009826 2174653 2341934 2488356 2903082 3011058 3512901 3732534 4019652 4349306 4354623 4516587 4683868 5806164 6022116 6523959 7025802 7465068 8698612 8709246 9033174 10538703 13047918 13063869 14051604 15222571 17418492 18066348 19571877 21077406 26095836 26127738 28270489 30445142 31616109 39143754 42154812 45667713 52255476 56540978 58715631 60890284 63232218 78287508 84811467 91335426 113081956 117431262 126464436 137003139 169622934 182670852 197893423 234862524 254434401 274006278 339245868 395786846 411009417 508868802 548012556 593680269 763303203 791573692 822018834 1017737604 1187360538 1526606406 1644037668 1781040807 2374721076 3053212812 3562081614 5343122421 7124163228 10686244842 21372489684
• Sum of all divisors σ(n): 68739894720
• Sum of proper divisors (its aliquot sum) s(n): 47367405036
• 21372489684 is an abundant number, because the sum of its proper divisors (47367405036) is greater than itself. Its abundance is 25994915352

Bases of 21372489684

• Binary: 10011111001111001100100111111010100₂
• Hexadecimal: 0x4F9E64FD4
• Base-36: 9TGMML0

Squares and roots of 21372489684

• 21372489684 squared (21372489684²) is 456783315292686419856
• 21372489684 cubed (21372489684³) is 9762596693916259949019252765504
• The square root of 21372489684 is 146193.3298204813
• The cube root of 21372489684 is 2775.1409038753

Scales and comparisons

• 21,372,489,684 seconds is equal to 679 years, 30 weeks, 18 hours, 41 minutes, 24 seconds.
• To count from 1 to 21,372,489,684 would take you about one thousand, three hundred fifty-nine 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 21372489684 cubic inches would be around 231.3 feet tall.

Recreational maths with 21372489684

• 21372489684 backwards is 48698427312
• 21372489684 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21372489684's digits is 54
• More coming soon!