21425860736

Names of 21425860736

• Cardinal: 21425860736 can be written as Twenty-one billion, four hundred twenty-five million, eight hundred sixty thousand, seven hundred thirty-six.

Scientific notation

• Scientific notation: 2.1425860736 × 10¹⁰

Factors of 21425860736

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 117835

Divisors of 21425860736

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 16 28 29 32 49 56 58 64 98 112 116 128 196 203 224 232 392 406 448 464 784 812 896 928 1421 1568 1624 1856 2842 3136 3248 3712 5684 6272 6496 11368 12992 22736 25984 45472 90944 117797 181888 235594 471188 824579 942376 1649158 1884752 3298316 3416113 3769504 5772053 6596632 6832226 7539008 11544106 13193264 13664452 15078016 23088212 23912791 26386528 27328904 46176424 47825582 52773056 54657808 92352848 95651164 105546112 109315616 167389537 184705696 191302328 218631232 334779074 369411392 382604656 437262464 669558148 738822784 765209312 1339116296 1530418624 2678232592 3060837248 5356465184 10712930368 21425860736
• Sum of all divisors σ(n): 51365817900
• Sum of proper divisors (its aliquot sum) s(n): 29939957164
• 21425860736 is an abundant number, because the sum of its proper divisors (29939957164) is greater than itself. Its abundance is 8514096428

Bases of 21425860736

• Binary: 10011111101000101001011000010000000₂
• Hexadecimal: 0x4FD14B080
• Base-36: 9UCEJY8

Squares and roots of 21425860736

• 21425860736 squared (21425860736²) is 459067508278466461696
• 21425860736 cubed (21425860736³) is 9835916500796949515945174368256
• The square root of 21425860736 is 146375.7518716813
• The cube root of 21425860736 is 2777.4489967337

Scales and comparisons

• 21,425,860,736 seconds is equal to 681 years, 14 weeks, 2 days, 11 hours, 58 minutes, 56 seconds.
• To count from 1 to 21,425,860,736 would take you about one thousand, three hundred sixty-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 21425860736 cubic inches would be around 231.5 feet tall.

Recreational maths with 21425860736

• 21425860736 backwards is 63706852412
• The number of decimal digits it has is: 11
• The sum of 21425860736's digits is 44
• More coming soon!