21407781304

Names of 21407781304

• Cardinal: 21407781304 can be written as Twenty-one billion, four hundred seven million, seven hundred eighty-one thousand, three hundred four.

Scientific notation

• Scientific notation: 2.1407781304 × 10¹⁰

Factors of 21407781304

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 16258

Divisors of 21407781304

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 49 52 56 91 98 104 182 196 263 364 392 526 637 728 1052 1274 1841 2104 2548 3419 3682 5096 6838 7364 12887 13676 14728 15973 23933 25774 27352 31946 47866 51548 63892 95732 103096 111811 127784 167531 191464 207649 223622 335062 415298 447244 670124 782677 830596 894488 1340248 1453543 1565354 1661192 2907086 3130708 4200899 5814172 6261416 8401798 10174801 11628344 16803596 20349602 29406293 33607192 40699204 54611687 58812586 81398408 109223374 117625172 205844051 218446748 235250344 382281809 411688102 436893496 764563618 823376204 1529127236 1646752408 2675972663 3058254472 5351945326 10703890652 21407781304
• Sum of all divisors σ(n): 50479117920
• Sum of proper divisors (its aliquot sum) s(n): 29071336616
• 21407781304 is an abundant number, because the sum of its proper divisors (29071336616) is greater than itself. Its abundance is 7663555312

Bases of 21407781304

• Binary: 10011111100000000001101000110111000₂
• Hexadecimal: 0x4FC00D1B8
• Base-36: 9U1N1RS

Squares and roots of 21407781304

• 21407781304 squared (21407781304²) is 458293100359891940416
• 21407781304 cubed (21407781304³) is 9811038465636690353497926782464
• The square root of 21407781304 is 146313.9819156051
• The cube root of 21407781304 is 2776.6675605141

Scales and comparisons

• 21,407,781,304 seconds is equal to 680 years, 36 weeks, 3 days, 5 hours, 55 minutes, 4 seconds.
• To count from 1 to 21,407,781,304 would take you about one thousand, three hundred sixty-one 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 21407781304 cubic inches would be around 231.4 feet tall.

Recreational maths with 21407781304

• 21407781304 backwards is 40318770412
• The number of decimal digits it has is: 11
• The sum of 21407781304's digits is 37
• More coming soon!