21489735124

Names of 21489735124

• Cardinal: 21489735124 can be written as Twenty-one billion, four hundred eighty-nine million, seven hundred thirty-five thousand, one hundred twenty-four.

Scientific notation

• Scientific notation: 2.1489735124 × 10¹⁰

Factors of 21489735124

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2174

Divisors of 21489735124

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 11 13 22 26 37 44 52 74 143 148 169 286 338 407 481 572 676 814 962 1369 1628 1859 1924 2111 2738 3718 4222 5291 5476 6253 7436 8444 10582 12506 15059 17797 21164 23221 25012 27443 30118 35594 46442 54886 60236 68783 71188 78107 92884 109772 137566 156214 195767 231361 275132 301873 312428 356759 391534 462722 603746 713518 783068 859177 925444 1015391 1207492 1427036 1718354 2030782 2544971 2889959 3436708 3924349 4061564 5089942 5779918 7848698 10179884 11169301 11559836 13200083 15697396 22338602 26400166 31789549 37569467 44677204 52800332 63579098 75138934 127158196 145200913 150277868 290401826 413264137 488403071 580803652 826528274 976806142 1653056548 1953612284 5372433781 10744867562 21489735124
• Sum of all divisors σ(n): 45679189248
• Sum of proper divisors (its aliquot sum) s(n): 24189454124
• 21489735124 is an abundant number, because the sum of its proper divisors (24189454124) is greater than itself. Its abundance is 2699719000

Bases of 21489735124

• Binary: 10100000000111000110101010111010100₂
• Hexadecimal: 0x500E355D4
• Base-36: 9VEFLQS

Squares and roots of 21489735124

• 21489735124 squared (21489735124²) is 461808715699679295376
• 21489735124 cubed (21489735124³) is 9924146978340728389377197986624
• The square root of 21489735124 is 146593.7758706011
• The cube root of 21489735124 is 2780.2062854361

Scales and comparisons

• 21,489,735,124 seconds is equal to 683 years, 15 weeks, 6 days, 18 hours, 52 minutes, 4 seconds.
• To count from 1 to 21,489,735,124 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 21489735124 cubic inches would be around 231.7 feet tall.

Recreational maths with 21489735124

• 21489735124 backwards is 42153798412
• The number of decimal digits it has is: 11
• The sum of 21489735124's digits is 46
• More coming soon!