21397461296121

Names of 21397461296121

• Cardinal: 21397461296121 can be written as Twenty-one trillion, three hundred ninety-seven billion, four hundred sixty-one million, two hundred ninety-six thousand, one hundred twenty-one.

Scientific notation

• Scientific notation: 2.1397461296121 × 10¹³

Factors of 21397461296121

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1623

Divisors of 21397461296121

• Number of divisors d(n): 45
• Complete list of divisors:
  1 3 9 27 81 433 1187 1299 3561 3897 10683 11691 32049 35073 96147 187489 513971 562467 1408969 1541913 1687401 4226907 4625739 5062203 12680721 13877217 15186609 38042163 41631651 114126489 222549443 610083577 667648329 1830250731 2002944987 5490752193 6008834961 16472256579 18026504883 49416769737 264166188841 792498566523 2377495699569 7132487098707 21397461296121
• Sum of all divisors σ(n): 32065113003231
• Sum of proper divisors (its aliquot sum) s(n): 10667651707110
• 21397461296121 is a deficient number, because the sum of its proper divisors (10667651707110) is less than itself. Its deficiency is 10729809589011

Bases of 21397461296121

• Binary: 100110111010111111100000101000110001111111001₂
• Hexadecimal: 0x1375FC1463F9
• Base-36: 7L1UVZMK9

Squares and roots of 21397461296121

• 21397461296121 squared (21397461296121²) is 457851349918996185249646641
• 21397461296121 cubed (21397461296121³) is 9796856539268473622391158636889113979561
• 21397461296121 is a perfect square number. Its square root is 4625739
• The cube root of 21397461296121 is 27762.2130787169

Scales and comparisons

• 21,397,461,296,121 seconds is equal to 680,373 years, 4 weeks, 2 days, 55 minutes, 21 seconds.
• To count from 1 to 21,397,461,296,121 would take you about one million, seven hundred thousand, nine hundred thirty-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 21397461296121 cubic inches would be around 2313.5 feet tall.

Recreational maths with 21397461296121

• 21397461296121 backwards is 12169216479312
• The number of decimal digits it has is: 14
• The sum of 21397461296121's digits is 54
• More coming soon!