21294807424

Names of 21294807424

• Cardinal: 21294807424 can be written as Twenty-one billion, two hundred ninety-four million, eight hundred seven thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1294807424 × 10¹⁰

Factors of 21294807424

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1046

Divisors of 21294807424

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 121 128 176 242 352 484 704 968 1033 1331 1408 1936 2066 2662 3872 4132 5324 7744 8264 10648 11363 14641 15488 16528 21296 22726 29282 33056 42592 45452 58564 66112 85184 90904 117128 124993 132224 161051 170368 181808 234256 249986 322102 363616 468512 499972 644204 727232 937024 999944 1288408 1374923 1454464 1874048 1999888 2576816 2749846 3999776 5153632 5499692 7999552 10307264 10999384 15124153 15999104 20614528 21998768 30248306 43997536 60496612 87995072 120993224 166365683 175990144 241986448 332731366 483972896 665462732 967945792 1330925464 1935891584 2661850928 5323701856 10647403712 21294807424
• Sum of all divisors σ(n): 46710722520
• Sum of proper divisors (its aliquot sum) s(n): 25415915096
• 21294807424 is an abundant number, because the sum of its proper divisors (25415915096) is greater than itself. Its abundance is 4121107672

Bases of 21294807424

• Binary: 10011110101010001001111100110000000₂
• Hexadecimal: 0x4F544F980
• Base-36: 9S6DMKG

Squares and roots of 21294807424

• 21294807424 squared (21294807424²) is 453468823225245515776
• 21294807424 cubed (21294807424³) is 9656531263369501833569473921024
• The square root of 21294807424 is 145927.4046366891
• The cube root of 21294807424 is 2771.7745680451

Scales and comparisons

• 21,294,807,424 seconds is equal to 677 years, 5 weeks, 4 days, 16 hours, 17 minutes, 4 seconds.
• To count from 1 to 21,294,807,424 would take you about one thousand, three hundred fifty-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 21294807424 cubic inches would be around 231 feet tall.

Recreational maths with 21294807424

• 21294807424 backwards is 42470849212
• The number of decimal digits it has is: 11
• The sum of 21294807424's digits is 43
• More coming soon!