21159351616

Names of 21159351616

• Cardinal: 21159351616 can be written as Twenty-one billion, one hundred fifty-nine million, three hundred fifty-one thousand, six hundred sixteen.

Scientific notation

• Scientific notation: 2.1159351616 × 10¹⁰

Factors of 21159351616

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 1481

Divisors of 21159351616

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 4 8 13 16 26 32 37 52 64 74 104 148 169 208 296 338 416 481 592 676 832 962 1184 1352 1369 1429 1924 2368 2704 2738 2858 3848 5408 5476 5716 6253 7696 10816 10952 11432 12506 15392 17797 18577 21904 22864 25012 30784 35594 37154 43808 45728 50024 52873 71188 74308 87616 91456 100048 105746 142376 148616 200096 211492 231361 241501 284752 297232 400192 422984 462722 483002 569504 594464 687349 845968 925444 966004 1139008 1188928 1374698 1691936 1850888 1932008 1956301 2749396 3383872 3701776 3864016 3912602 5498792 7403552 7728032 7825204 8935537 10997584 14807104 15456064 15650408 17871074 21995168 25431913 31300816 35742148 43990336 50863826 62601632 71484296 101727652 125203264 142968592 203455304 285937184 330614869 406910608 571874368 661229738 813821216 1322459476 1627642432 2644918952 5289837904 10579675808 21159351616
• Sum of all divisors σ(n): 46761124410
• Sum of proper divisors (its aliquot sum) s(n): 25601772794
• 21159351616 is an abundant number, because the sum of its proper divisors (25601772794) is greater than itself. Its abundance is 4442421178

Bases of 21159351616

• Binary: 10011101101001100100001010101000000₂
• Hexadecimal: 0x4ED321540
• Base-36: 9PXQC74

Squares and roots of 21159351616

• 21159351616 squared (21159351616²) is 447718160809521811456
• 21159351616 cubed (21159351616³) is 9473425989437503209418760912896
• The square root of 21159351616 is 145462.5436873699
• The cube root of 21159351616 is 2765.8849965613

Scales and comparisons

• 21,159,351,616 seconds is equal to 672 years, 41 weeks, 4 days, 21 hours, 40 minutes, 16 seconds.
• To count from 1 to 21,159,351,616 would take you about one thousand, three hundred forty-five 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 21159351616 cubic inches would be around 230.5 feet tall.

Recreational maths with 21159351616

• 21159351616 backwards is 61615395112
• The number of decimal digits it has is: 11
• The sum of 21159351616's digits is 40
• More coming soon!