21656722459980984

Names of 21656722459980984

• Cardinal: 21656722459980984 can be written as Twenty-one quadrillion, six hundred fifty-six trillion, seven hundred twenty-two billion, four hundred fifty-nine million, nine hundred eighty thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.1656722459980984 × 10¹⁶

Factors of 21656722459980984

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 22910464

Divisors of 21656722459980984

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 2304851 4609702 6914553 9219404 13829106 18438808 20605589 27658212 41211178 43792169 55316424 61816767 82422356 87584338 123633534 131376507 164844712 175168676 247267068 262753014 350337352 391506191 494534136 525506028 783012382 1051012056 1174518573 1566024764 2349037146 3132049528 4698074292 9396148584 47492812412239 94985624824478 142478437236717 189971249648956 284956874473434 379942499297912 569913748946868 902363435832541 1139827497893736 1804726871665082 2707090307497623 3609453743330164 5414180614995246 7218907486660328 10828361229990492 21656722459980984
• Sum of all divisors σ(n): 56991402387216000
• Sum of proper divisors (its aliquot sum) s(n): 35334679927235016
• 21656722459980984 is an abundant number, because the sum of its proper divisors (35334679927235016) is greater than itself. Its abundance is 13677957467254032

Bases of 21656722459980984

• Binary: 1001100111100001010110010100001001110011111010010111000₂
• Hexadecimal: 0x4CF0ACA139F4B8
• Base-36: 5X8O0Y8O2WO

Squares and roots of 21656722459980984

• 21656722459980984 squared (21656722459980984²) is 469013627708644803131401641608256
• 21656722459980984 cubed (21656722459980984³) is 10157297965234967480993596673522041503012937403904
• The square root of 21656722459980984 is 147162231.7715417905
• The cube root of 21656722459980984 is 278738.8968771381

Scales and comparisons

• 21,656,722,459,980,984 seconds is equal to 688,616,785 years, 30 weeks, 3 days, 11 hours, 36 minutes, 24 seconds.
• To count from 1 to 21,656,722,459,980,984 would take you about two billion, sixty-five million, eight hundred fifty thousand, three hundred fifty-six 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 21656722459980984 cubic inches would be around 23228.2 feet tall.

Recreational maths with 21656722459980984

• 21656722459980984 backwards is 48908995422765612
• The number of decimal digits it has is: 17
• The sum of 21656722459980984's digits is 87
• More coming soon!