21629831932791

Names of 21629831932791

• Cardinal: 21629831932791 can be written as Twenty-one trillion, six hundred twenty-nine billion, eight hundred thirty-one million, nine hundred thirty-two thousand, seven hundred ninety-one.

Scientific notation

• Scientific notation: 2.1629831932791 × 10¹³

Factors of 21629831932791

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 5765

Divisors of 21629831932791

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 19 31 57 93 131 171 279 393 589 1179 1767 2489 4061 5301 5581 7467 12183 16743 22401 36549 50229 77159 106039 173011 231477 318117 519033 694431 731111 954351 1557099 2193333 3287209 6579999 9861627 13891109 22664441 29584881 31147561 41673327 67993323 93442683 125019981 203979969 280328049 430624379 591803659 965574391 1291873137 1775410977 2896723173 3875619411 4080330491 5326232931 8690169519 12240991473 18345913429 36722974419 55037740287 77526279329 126490245221 165113220861 232578837987 379470735663 697736513961 1138412206989 2403314659199 7209943977597 21629831932791
• Sum of all divisors σ(n): 34213627768320
• Sum of proper divisors (its aliquot sum) s(n): 12583795835529
• 21629831932791 is a deficient number, because the sum of its proper divisors (12583795835529) is less than itself. Its deficiency is 9046036097262

Bases of 21629831932791

• Binary: 100111010110000010110011100101110101101110111₂
• Hexadecimal: 0x13AC1672EB77
• Base-36: 7O0LVGTBR

Squares and roots of 21629831932791

• 21629831932791 squared (21629831932791²) is 467849629440785246741049681
• 21629831932791 cubed (21629831932791³) is 10119508854622733090001716455464383989671
• The square root of 21629831932791 is 4650788.3130487675
• The cube root of 21629831932791 is 27862.3481747113

Scales and comparisons

• 21,629,831,932,791 seconds is equal to 687,761 years, 38 weeks, 6 days, 23 hours, 59 minutes, 51 seconds.
• To count from 1 to 21,629,831,932,791 would take you about one million, seven hundred nineteen thousand, four hundred 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 21629831932791 cubic inches would be around 2321.9 feet tall.

Recreational maths with 21629831932791

• 21629831932791 backwards is 19723913892612
• The number of decimal digits it has is: 14
• The sum of 21629831932791's digits is 63
• More coming soon!