21307064320

Names of 21307064320

• Cardinal: 21307064320 can be written as Twenty-one billion, three hundred seven million, sixty-four thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.130706432 × 10¹⁰

Factors of 21307064320

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 27
• Sum of prime factors: 134

Divisors of 21307064320

• Number of divisors d(n): 104
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 127 128 160 254 256 320 508 512 635 640 1016 1024 1270 1280 2032 2048 2540 2560 4064 4096 5080 5120 8128 8192 10160 10240 16256 16384 20320 20480 32512 32768 40640 40960 65024 65536 81280 81920 130048 131072 162560 163840 260096 262144 325120 327680 520192 524288 650240 655360 1040384 1048576 1300480 1310720 2080768 2097152 2600960 2621440 4161536 4194304 5201920 5242880 8323072 8388608 10403840 10485760 16646144 16777216 20807680 20971520 33292288 33554432 41615360 41943040 66584576 83230720 83886080 133169152 166461440 167772160 266338304 332922880 532676608 665845760 1065353216 1331691520 2130706432 2663383040 4261412864 5326766080 10653532160 21307064320
• Sum of all divisors σ(n): 51539606784
• Sum of proper divisors (its aliquot sum) s(n): 30232542464
• 21307064320 is an abundant number, because the sum of its proper divisors (30232542464) is greater than itself. Its abundance is 8925478144

Bases of 21307064320

• Binary: 10011110110000000000000000000000000₂
• Hexadecimal: 0x4F6000000
• Base-36: 9SDOC1S

Squares and roots of 21307064320

• 21307064320 squared (21307064320²) is 453990989936617062400
• 21307064320 cubed (21307064320³) is 9673215223279972471766253568000
• The square root of 21307064320 is 145969.3951484351
• The cube root of 21307064320 is 2772.3062600499

Scales and comparisons

• 21,307,064,320 seconds is equal to 677 years, 25 weeks, 6 days, 12 hours, 58 minutes, 40 seconds.
• To count from 1 to 21,307,064,320 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 21307064320 cubic inches would be around 231 feet tall.

Recreational maths with 21307064320

• 21307064320 backwards is 02346070312
• The number of decimal digits it has is: 11
• The sum of 21307064320's digits is 28
• More coming soon!