15820921815138

Names of 15820921815138

• Cardinal: 15820921815138 can be written as Fifteen trillion, eight hundred twenty billion, nine hundred twenty-one million, eight hundred fifteen thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 1.5820921815138 × 10¹³

Factors of 15820921815138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 48455949

Divisors of 15820921815138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 11 17 18 22 33 34 51 66 97 99 102 153 187 194 198 291 306 374 561 582 873 1067 1122 1649 1683 1746 2134 3201 3298 3366 4947 6402 9603 9894 14841 18139 19206 29682 36278 54417 108834 163251 326502 48455819 96911638 145367457 290734914 436102371 533014009 823748923 872204742 1066028018 1599042027 1647497846 2471246769 3198084054 4700214443 4797126081 4942493538 7413740307 9061238153 9400428886 9594252162 14100643329 14827480614 18122476306 27183714459 28201286658 42301929987 51702358873 54367428918 79903645531 81551143377 84603859974 103404717746 155107076619 159807291062 163102286754 239710936593 310214153238 465321229857 479421873186 719132809779 878940100841 930642459714 1438265619558 1757880201682 2636820302523 5273640605046 7910460907569 15820921815138
• Sum of all divisors σ(n): 40002799112640
• Sum of proper divisors (its aliquot sum) s(n): 24181877297502
• 15820921815138 is an abundant number, because the sum of its proper divisors (24181877297502) is greater than itself. Its abundance is 8360955482364

Bases of 15820921815138

• Binary: 11100110001110011000011011001100000001100010₂
• Hexadecimal: 0xE63986CC062
• Base-36: 5LW14D4KI

Squares and roots of 15820921815138

• 15820921815138 squared (15820921815138²) is 250301567080709468645959044
• 15820921815138 cubed (15820921815138³) is 3960001522990423914435049857489287208072
• The square root of 15820921815138 is 3977552.2391463321
• The cube root of 15820921815138 is 25104.0579118493

Scales and comparisons

• 15,820,921,815,138 seconds is equal to 503,056 years, 19 weeks, 4 days, 12 minutes, 18 seconds.
• To count from 1 to 15,820,921,815,138 would take you about one million, two hundred fifty-seven thousand, six hundred forty 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 15820921815138 cubic inches would be around 2092 feet tall.

Recreational maths with 15820921815138

• 15820921815138 backwards is 83151812902851
• The number of decimal digits it has is: 14
• The sum of 15820921815138's digits is 54
• More coming soon!