21046579389864

Names of 21046579389864

• Cardinal: 21046579389864 can be written as Twenty-one trillion, forty-six billion, five hundred seventy-nine million, three hundred eighty-nine thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 2.1046579389864 × 10¹³

Factors of 21046579389864

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 971141592

Divisors of 21046579389864

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 43 56 63 72 84 86 126 129 168 172 252 258 301 344 387 504 516 602 774 903 1032 1204 1548 1806 2408 2709 3096 3612 5418 7224 10836 21672 971141537 1942283074 2913424611 3884566148 5826849222 6797990759 7769132296 8740273833 11653698444 13595981518 17480547666 20393972277 23307396888 27191963036 34961095332 40787944554 41759086091 54383926072 61181916831 69922190664 81575889108 83518172182 122363833662 125277258273 163151778216 167036344364 244727667324 250554516546 292313602637 334072688728 375831774819 489455334648 501109033092 584627205274 751663549638 876940807911 1002218066184 1169254410548 1503327099276 1753881615822 2338508821096 2630822423733 3006654198552 3507763231644 5261644847466 7015526463288 10523289694932 21046579389864
• Sum of all divisors σ(n): 66659155168320
• Sum of proper divisors (its aliquot sum) s(n): 45612575778456
• 21046579389864 is an abundant number, because the sum of its proper divisors (45612575778456) is greater than itself. Its abundance is 24565996388592

Bases of 21046579389864

• Binary: 100110010010001001001111000110110010110101000₂
• Hexadecimal: 0x132449E365A8
• Base-36: 7GKNXYMY0

Squares and roots of 21046579389864

• 21046579389864 squared (21046579389864²) is 442958504013848102505938496
• 21046579389864 cubed (21046579389864³) is 9322761321142845392246209160580389804544
• The square root of 21046579389864 is 4587655.1079897015
• The cube root of 21046579389864 is 27609.6249555413

Scales and comparisons

• 21,046,579,389,864 seconds is equal to 669,216 years, 6 weeks, 2 days, 20 hours, 44 minutes, 24 seconds.
• To count from 1 to 21,046,579,389,864 would take you about one million, six hundred seventy-three thousand and forty 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 21046579389864 cubic inches would be around 2300.8 feet tall.

Recreational maths with 21046579389864

• 21046579389864 backwards is 46898397564012
• 21046579389864 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21046579389864's digits is 72
• More coming soon!