21561107748264

Names of 21561107748264

• Cardinal: 21561107748264 can be written as Twenty-one trillion, five hundred sixty-one billion, one hundred seven million, seven hundred forty-eight thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 2.1561107748264 × 10¹³

Factors of 21561107748264

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2071490

Divisors of 21561107748264

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 6907 13814 20721 27628 41442 48349 55256 62163 82884 96698 124326 145047 165768 186489 193396 248652 290094 372978 386792 435141 497304 580188 745956 870282 1160376 1305423 1491912 1740564 2064571 2610846 3481128 4129142 5221692 6193713 8258284 10443384 12387426 14451997 16516568 18581139 24774852 28903994 37162278 43355991 49549704 55743417 57807988 74324556 86711982 111486834 115615976 130067973 148649112 173423964 222973668 260135946 346847928 390203919 445947336 520271892 780407838 1040543784 1560815676 3121631352 14259991897 28519983794 42779975691 57039967588 85559951382 99819943279 114079935176 128339927073 171119902764 199639886558 256679854146 299459829837 342239805528 385019781219 399279773116 513359708292 598919659674 770039562438 798559546232 898379489511 1026719416584 1197839319348 1540079124876 1796758979022 2395678638696 2695138468533 3080158249752 3593517958044 5390276937066 7187035916088 10780553874132 21561107748264
• Sum of all divisors σ(n): 68457904204800
• Sum of proper divisors (its aliquot sum) s(n): 46896796456536
• 21561107748264 is an abundant number, because the sum of its proper divisors (46896796456536) is greater than itself. Its abundance is 25335688708272

Bases of 21561107748264

• Binary: 100111001110000010110001010110001010110101000₂
• Hexadecimal: 0x139C162B15A8
• Base-36: 7N51AV160

Squares and roots of 21561107748264

• 21561107748264 squared (21561107748264²) is 464881367332249896395013696
• 21561107748264 cubed (21561107748264³) is 10023357251210936012410441042040000223744
• The square root of 21561107748264 is 4643393.9902041483
• The cube root of 21561107748264 is 27832.8079741655

Scales and comparisons

• 21,561,107,748,264 seconds is equal to 685,576 years, 27 weeks, 5 days, 4 hours, 44 minutes, 24 seconds.
• To count from 1 to 21,561,107,748,264 would take you about one million, seven hundred thirteen thousand, nine hundred forty-one 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 21561107748264 cubic inches would be around 2319.4 feet tall.

Recreational maths with 21561107748264

• 21561107748264 backwards is 46284770116512
• 21561107748264 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21561107748264's digits is 54
• More coming soon!