21329714890

Names of 21329714890

• Cardinal: 21329714890 can be written as Twenty-one billion, three hundred twenty-nine million, seven hundred fourteen thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 2.132971489 × 10¹⁰

Factors of 21329714890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 44479

Divisors of 21329714890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 11 22 29 55 58 110 145 151 290 302 319 638 755 1510 1595 1661 3190 3322 4379 8305 8758 16610 21895 43790 44281 48169 88562 96338 221405 240845 442810 481690 487091 974182 1284149 2435455 2568298 4870910 6420745 6686431 12841490 13372862 14125639 28251278 33432155 66864310 70628195 73550741 141256390 147101482 193906499 367753705 387812998 735507410 969532495 1939064990 2132971489 4265942978 10664857445 21329714890
• Sum of all divisors σ(n): 43615998720
• Sum of proper divisors (its aliquot sum) s(n): 22286283830
• 21329714890 is an abundant number, because the sum of its proper divisors (22286283830) is greater than itself. Its abundance is 956568940

Bases of 21329714890

• Binary: 10011110111010110011001111011001010₂
• Hexadecimal: 0x4F7599ECA
• Base-36: 9SR5TCA

Squares and roots of 21329714890

• 21329714890 squared (21329714890²) is 454956737288687712100
• 21329714890 cubed (21329714890³) is 9704097493652340521339403169000
• The square root of 21329714890 is 146046.9612487709
• The cube root of 21329714890 is 2773.2882830061

Scales and comparisons

• 21,329,714,890 seconds is equal to 678 years, 11 weeks, 2 days, 16 hours, 48 minutes, 10 seconds.
• To count from 1 to 21,329,714,890 would take you about one thousand, three hundred fifty-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 21329714890 cubic inches would be around 231.1 feet tall.

Recreational maths with 21329714890

• 21329714890 backwards is 09841792312
• The number of decimal digits it has is: 11
• The sum of 21329714890's digits is 46
• More coming soon!