21726137394

Names of 21726137394

• Cardinal: 21726137394 can be written as Twenty-one billion, seven hundred twenty-six million, one hundred thirty-seven thousand, three hundred ninety-four.

Scientific notation

• Scientific notation: 2.1726137394 × 10¹⁰

Factors of 21726137394

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1936

Divisors of 21726137394

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 9 13 17 18 26 34 39 51 78 102 117 153 169 221 234 289 306 338 442 507 578 663 867 1014 1326 1521 1734 1901 1989 2197 2601 2873 3042 3757 3802 3978 4394 5202 5703 5746 6591 7514 8619 11271 11406 13182 17109 17238 19773 22542 24713 25857 32317 33813 34218 37349 39546 48841 49426 51714 64634 67626 74139 74698 96951 97682 112047 146523 148278 193902 222417 224094 290853 293046 321269 336141 420121 439569 444834 549389 581706 634933 642538 672282 840242 879138 963807 1098778 1260363 1269866 1648167 1904799 1927614 2520726 2891421 3296334 3781089 3809598 4176497 4944501 5461573 5714397 5782842 7142057 7562178 8352994 9889002 10923146 11428794 12529491 14284114 16384719 21426171 25058982 32769438 37588473 42852342 49154157 64278513 71000449 75176946 92846741 98308314 128557026 142000898 185693482 213001347 278540223 426002694 557080446 639004041 835620669 1207007633 1278008082 1671241338 2414015266 3621022899 7242045798 10863068697 21726137394
• Sum of all divisors σ(n): 54198897480
• Sum of proper divisors (its aliquot sum) s(n): 32472760086
• 21726137394 is an abundant number, because the sum of its proper divisors (32472760086) is greater than itself. Its abundance is 10746622692

Bases of 21726137394

• Binary: 10100001110111110101000110000110010₂
• Hexadecimal: 0x50EFA8C32
• Base-36: 9ZB6IWI

Squares and roots of 21726137394

• 21726137394 squared (21726137394²) is 472025046062965111236
• 21726137394 cubed (21726137394³) is 10255281004173158781741829158984
• The square root of 21726137394 is 147397.8880242181
• The cube root of 21726137394 is 2790.3638736111

Scales and comparisons

• 21,726,137,394 seconds is equal to 690 years, 42 weeks, 5 days, 22 hours, 9 minutes, 54 seconds.
• To count from 1 to 21,726,137,394 would take you about one thousand, three hundred eighty-one 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 21726137394 cubic inches would be around 232.5 feet tall.

Recreational maths with 21726137394

• 21726137394 backwards is 49373162712
• The number of decimal digits it has is: 11
• The sum of 21726137394's digits is 45
• More coming soon!