21081452624172

Names of 21081452624172

• Cardinal: 21081452624172 can be written as Twenty-one trillion, eighty-one billion, four hundred fifty-two million, six hundred twenty-four thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 2.1081452624172 × 10¹³

Factors of 21081452624172

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 40340249

Divisors of 21081452624172

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 1613 3226 4839 6452 9678 14517 19356 29034 43551 58068 87102 130653 174204 261306 522612 40338631 80677262 121015893 161354524 242031786 363047679 484063572 726095358 1089143037 1452190716 2178286074 3267429111 4356572148 6534858222 13069716444 65066211803 130132423606 195198635409 260264847212 390397270818 585595906227 780794541636 1171191812454 1756787718681 2342383624908 3513575437362 5270363156043 7027150874724 10540726312086 21081452624172
• Sum of all divisors σ(n): 55145249584656
• Sum of proper divisors (its aliquot sum) s(n): 34063796960484
• 21081452624172 is an abundant number, because the sum of its proper divisors (34063796960484) is greater than itself. Its abundance is 12982344336312

Bases of 21081452624172

• Binary: 100110010110001101000011111101011100100101100₂
• Hexadecimal: 0x132C687EB92C
• Base-36: 7H0OOL2R0

Squares and roots of 21081452624172

• 21081452624172 squared (21081452624172²) is 444427644745208505078685584
• 21081452624172 cubed (21081452624172³) is 9369180337568457205714349394161306336448
• The square root of 21081452624172 is 4591454.3038314125
• The cube root of 21081452624172 is 27624.8658425745

Scales and comparisons

• 21,081,452,624,172 seconds is equal to 670,324 years, 51 weeks, 1 day, 6 hours, 16 minutes, 12 seconds.
• To count from 1 to 21,081,452,624,172 would take you about one million, six hundred seventy-five thousand, eight 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 21081452624172 cubic inches would be around 2302.1 feet tall.

Recreational maths with 21081452624172

• 21081452624172 backwards is 27142625418012
• The number of decimal digits it has is: 14
• The sum of 21081452624172's digits is 45
• More coming soon!