21103268121

Names of 21103268121

• Cardinal: 21103268121 can be written as Twenty-one billion, one hundred three million, two hundred sixty-eight thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 2.1103268121 × 10¹⁰

Factors of 21103268121

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1264

Divisors of 21103268121

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 17 27 39 51 117 153 169 221 289 351 459 507 663 867 1231 1521 1989 2197 2601 2873 3693 3757 4563 5967 6591 7803 8619 11079 11271 16003 19773 20927 25857 33237 33813 37349 48009 48841 59319 62781 77571 101439 112047 144027 146523 188343 208039 272051 336141 355759 432081 439569 565029 624117 634933 816153 1008423 1067277 1318707 1872351 1904799 2448459 2704507 3201831 3536663 4624867 5617053 5714397 7345377 8113521 9605493 10609989 13874601 17143191 24340563 31829967 41623803 45976619 60123271 73021689 95489901 124871409 137929857 180369813 413789571 541109439 781602523 1241368713 1623328317 2344807569 7034422707 21103268121
• Sum of all divisors σ(n): 36006924800
• Sum of proper divisors (its aliquot sum) s(n): 14903656679
• 21103268121 is a deficient number, because the sum of its proper divisors (14903656679) is less than itself. Its deficiency is 6199611442

Bases of 21103268121

• Binary: 10011101001110110100101000100011001₂
• Hexadecimal: 0x4E9DA5119
• Base-36: 9P0C9W9

Squares and roots of 21103268121

• 21103268121 squared (21103268121²) is 445347925386814870641
• 21103268121 cubed (21103268121³) is 9398296676569056853326954135561
• The square root of 21103268121 is 145269.6393641837
• The cube root of 21103268121 is 2763.4391473553

Scales and comparisons

• 21,103,268,121 seconds is equal to 671 years, 6 days, 18 hours, 55 minutes, 21 seconds.
• To count from 1 to 21,103,268,121 would take you about one thousand, three hundred forty-two 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 21103268121 cubic inches would be around 230.3 feet tall.

Recreational maths with 21103268121

• 21103268121 backwards is 12186230112
• 21103268121 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21103268121's digits is 27
• More coming soon!