21388645824712704

Names of 21388645824712704

• Cardinal: 21388645824712704 can be written as Twenty-one quadrillion, three hundred eighty-eight trillion, six hundred forty-five billion, eight hundred twenty-four million, seven hundred twelve thousand, seven hundred four.

Scientific notation

• Scientific notation: 2.1388645824712704 × 10¹⁶

Factors of 21388645824712704

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 5788

Divisors of 21388645824712704

• Number of divisors d(n): 156
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 512 576 768 864 1024 1152 1536 1728 2048 2304 3072 3456 4096 4608 5783 6144 6912 9216 11566 12288 13824 17349 18432 23132 27648 34698 36864 46264 52047 55296 69396 92528 104094 110592 138792 156141 185056 208188 277584 312282 370112 416376 555168 624564 740224 832752 1110336 1249128 1480448 1665504 2220672 2498256 2960896 3331008 4441344 4996512 5921792 6662016 8882688 9993024 11843584 13324032 17765376 19986048 23687168 26648064 33443089 35530752 39972096 53296128 66886178 71061504 79944192 100329267 106592256 133772356 159888384 200658534 213184512 267544712 300987801 319776768 401317068 535089424 601975602 639553536 802634136 902963403 1070178848 1203951204 1605268272 1805926806 2140357696 2407902408 3210536544 3611853612 4280715392 4815804816 6421073088 7223707224 8561430784 9631609632 12842146176 14447414448 17122861568 19263219264 25684292352 28894828896 34245723136 38526438528 51368584704 57789657792 68491446272 77052877056 102737169408 115579315584 136982892544 154105754112 205474338816 231158631168 308211508224 410948677632 462317262336 616423016448 924634524672 1232846032896 1849269049344 3698538098688
• Sum of all divisors σ(n): 21395906475363736
• Sum of proper divisors (its aliquot sum) s(n): 7260650651032
• 21388645824712704 is a deficient number, because the sum of its proper divisors (7260650651032) is less than itself. Its deficiency is 21381385174061672

Bases of 21388645824712704

• Binary: 1001011111111001101110000101100100110111101000000000000₂
• Hexadecimal: 0x4BFCDC2C9BD000
• Base-36: 5ULN48TKAO0

Squares and roots of 21388645824712704

• 21388645824712704 squared (21388645824712704²) is 457474170215000185843204138991616
• 21388645824712704 cubed (21388645824712704³) is 9784753000682972578103383618673738092087464689664
• The square root of 21388645824712704 is 146248575.4621654563
• 21388645824712704 is a perfect cube number. Its cube root is 277584

Scales and comparisons

• 21,388,645,824,712,704 seconds is equal to 680,092,777 years, 41 weeks, 4 days, 8 hours, 38 minutes, 24 seconds.
• To count from 1 to 21,388,645,824,712,704 would take you about two billion, forty million, two hundred seventy-eight thousand, three hundred thirty-three 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 21388645824712704 cubic inches would be around 23132 feet tall.

Recreational maths with 21388645824712704

• 21388645824712704 backwards is 40721742854688312
• 21388645824712704 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21388645824712704's digits is 72
• More coming soon!