21013475448

Names of 21013475448

• Cardinal: 21013475448 can be written as Twenty-one billion, thirteen million, four hundred seventy-five thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 2.1013475448 × 10¹⁰

Factors of 21013475448

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 38257

Divisors of 21013475448

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 19 21 24 28 38 42 56 57 76 84 114 133 152 168 173 228 266 346 399 456 519 532 692 798 1038 1064 1211 1384 1596 2076 2422 3192 3287 3633 4152 4844 6574 7266 9688 9861 13148 14532 19722 23009 26296 29064 38053 39444 46018 69027 76106 78888 92036 114159 138054 152212 184072 228318 266371 276108 304424 456636 532742 552216 723007 799113 913272 1065484 1446014 1598226 2130968 2169021 2892028 3196452 4338042 5061049 5784056 6392904 6583169 8676084 10122098 13166338 15183147 17352168 19749507 20244196 26332676 30366294 39499014 40488392 46082183 52665352 60732588 78998028 92164366 121465176 125080211 138246549 157996056 184328732 250160422 276493098 368657464 375240633 500320844 552986196 750481266 875561477 1000641688 1105972392 1500962532 1751122954 2626684431 3001925064 3502245908 5253368862 7004491816 10506737724 21013475448
• Sum of all divisors σ(n): 63565401600
• Sum of proper divisors (its aliquot sum) s(n): 42551926152
• 21013475448 is an abundant number, because the sum of its proper divisors (42551926152) is greater than itself. Its abundance is 21538450704

Bases of 21013475448

• Binary: 10011100100100000000011000001111000₂
• Hexadecimal: 0x4E4803078
• Base-36: 9NIVPFC

Squares and roots of 21013475448

• 21013475448 squared (21013475448²) is 441566150403698800704
• 21013475448 cubed (21013475448³) is 9278839460176000036980549115392
• The square root of 21013475448 is 144960.2547183193
• The cube root of 21013475448 is 2759.5141730469

Scales and comparisons

• 21,013,475,448 seconds is equal to 668 years, 8 weeks, 3 days, 12 hours, 30 minutes, 48 seconds.
• To count from 1 to 21,013,475,448 would take you about one thousand, three hundred thirty-six 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 21013475448 cubic inches would be around 230 feet tall.

Recreational maths with 21013475448

• 21013475448 backwards is 84457431012
• The number of decimal digits it has is: 11
• The sum of 21013475448's digits is 39
• More coming soon!