21642508926801

Names of 21642508926801

• Cardinal: 21642508926801 can be written as Twenty-one trillion, six hundred forty-two billion, five hundred eight million, nine hundred twenty-six thousand, eight hundred one.

Scientific notation

• Scientific notation: 2.1642508926801 × 10¹³

Factors of 21642508926801

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7678

Divisors of 21642508926801

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 7 9 21 29 49 63 87 147 203 261 441 609 841 1421 1827 2523 4263 5887 7569 7639 12789 17661 22917 41209 52983 53473 68751 123627 160419 221531 370881 374311 481257 664593 1122933 1550717 1993779 3368799 4652151 6424399 10855019 13956453 19273197 32565057 44970793 57819591 58354321 97695171 134912379 175062963 314795551 404737137 408480247 525188889 944386653 1225440741 1692275309 2833159959 2859361729 3676322223 5076825927 8578085187 11845927163 15230477781 25734255561 35537781489 49075983961 82921490141 106613344467 147227951883 248764470423 343531887727 441683855649 746293411269 1030595663181 2404723214089 3091786989543 7214169642267 21642508926801
• Sum of all divisors σ(n): 37667451610971
• Sum of proper divisors (its aliquot sum) s(n): 16024942684170
• 21642508926801 is a deficient number, because the sum of its proper divisors (16024942684170) is less than itself. Its deficiency is 5617566242631

Bases of 21642508926801

• Binary: 100111010111100001010000011100111111101010001₂
• Hexadecimal: 0x13AF0A0E7F51
• Base-36: 7O6FJ0SI9

Squares and roots of 21642508926801

• 21642508926801 squared (21642508926801²) is 468398192646660972776093601
• 21642508926801 cubed (21642508926801³) is 10137312065652814619712424198247633500401
• 21642508926801 is a perfect square number. Its square root is 4652151
• The cube root of 21642508926801 is 27867.7903781799

Scales and comparisons

• 21,642,508,926,801 seconds is equal to 688,164 years, 43 weeks, 4 days, 11 hours, 13 minutes, 21 seconds.
• To count from 1 to 21,642,508,926,801 would take you about one million, seven hundred twenty thousand, four hundred twelve 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 21642508926801 cubic inches would be around 2322.3 feet tall.

Recreational maths with 21642508926801

• 21642508926801 backwards is 10862980524612
• The number of decimal digits it has is: 14
• The sum of 21642508926801's digits is 54
• More coming soon!