21087137937408

Names of 21087137937408

• Cardinal: 21087137937408 can be written as Twenty-one trillion, eighty-seven billion, one hundred thirty-seven million, nine hundred thirty-seven thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.1087137937408 × 10¹³

Factors of 21087137937408

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 3432151362

Divisors of 21087137937408

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 2048 3072 6144 3432151357 6864302714 10296454071 13728605428 20592908142 27457210856 41185816284 54914421712 82371632568 109828843424 164743265136 219657686848 329486530272 439315373696 658973060544 878630747392 1317946121088 1757261494784 2635892242176 3514522989568 5271784484352 7029045979136 10543568968704 21087137937408
• Sum of all divisors σ(n): 56218639244040
• Sum of proper divisors (its aliquot sum) s(n): 35131501306632
• 21087137937408 is an abundant number, because the sum of its proper divisors (35131501306632) is greater than itself. Its abundance is 14044363369224

Bases of 21087137937408

• Binary: 100110010110110111011010111011011100000000000₂
• Hexadecimal: 0x132DBB5DB800
• Base-36: 7H3APH2IO

Squares and roots of 21087137937408

• 21087137937408 squared (21087137937408²) is 444667386391271720525758464
• 21087137937408 cubed (21087137937408³) is 9376762513099447717221621753887758221312
• The square root of 21087137937408 is 4592073.3811000887
• The cube root of 21087137937408 is 27627.3489399505

Scales and comparisons

• 21,087,137,937,408 seconds is equal to 670,505 years, 39 weeks, 3 days, 11 hours, 56 minutes, 48 seconds.
• To count from 1 to 21,087,137,937,408 would take you about one million, six hundred seventy-six thousand, two hundred sixty-four 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 21087137937408 cubic inches would be around 2302.3 feet tall.

Recreational maths with 21087137937408

• 21087137937408 backwards is 80473973178012
• The number of decimal digits it has is: 14
• The sum of 21087137937408's digits is 60
• More coming soon!