21727370849521689

Names of 21727370849521689

• Cardinal: 21727370849521689 can be written as Twenty-one quadrillion, seven hundred twenty-seven trillion, three hundred seventy billion, eight hundred forty-nine million, five hundred twenty-one thousand, six hundred eighty-nine.

Scientific notation

• Scientific notation: 2.1727370849521689 × 10¹⁶

Factors of 21727370849521689

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 5819745635

Divisors of 21727370849521689

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 43 99 129 387 473 877 1419 2631 4257 7893 9647 28941 37711 86823 113133 339399 414821 1244463 3733389 5819744701 17459234103 52377702309 64017191711 192051575133 250249022143 576154725399 750747066429 2252241199287 2752739243573 5103916102777 8258217730719 15311748308331 24774653192157 45935244924993 56143077130547 168429231391641 219468392419411 505287694174923 658405177258233 1975215531774699 2414152316613521 7242456949840563 21727370849521689
• Sum of all divisors σ(n): 35073226863115584
• Sum of proper divisors (its aliquot sum) s(n): 13345856013593895
• 21727370849521689 is a deficient number, because the sum of its proper divisors (13345856013593895) is less than itself. Its deficiency is 8381514835927794

Bases of 21727370849521689

• Binary: 1001101001100001110110110111101011000111001000000011001₂
• Hexadecimal: 0x4D30EDBD639019
• Base-36: 5XXPKDFPPG9

Squares and roots of 21727370849521689

• 21727370849521689 squared (21727370849521689²) is 472078644032644841542960081412721
• 21727370849521689 cubed (21727370849521689³) is 10257027769036613570237481508797126295082250005769
• The square root of 21727370849521689 is 147402072.0665815095
• The cube root of 21727370849521689 is 279041.6678281939

Scales and comparisons

• 21,727,370,849,521,689 seconds is equal to 690,863,185 years, 43 weeks, 6 days, 5 hours, 48 minutes, 9 seconds.
• To count from 1 to 21,727,370,849,521,689 would take you about two billion, seventy-two million, five hundred eighty-nine thousand, five hundred fifty-seven 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 21727370849521689 cubic inches would be around 23253.5 feet tall.

Recreational maths with 21727370849521689

• 21727370849521689 backwards is 98612594807372712
• The number of decimal digits it has is: 17
• The sum of 21727370849521689's digits is 81
• More coming soon!