21721064302741466

Names of 21721064302741466

• Cardinal: 21721064302741466 can be written as Twenty-one quadrillion, seven hundred twenty-one trillion, sixty-four billion, three hundred two million, seven hundred forty-one thousand, four hundred sixty-six.

Scientific notation

• Scientific notation: 2.1721064302741466 × 10¹⁶

Factors of 21721064302741466

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 145

Divisors of 21721064302741466

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 13 26 41 82 89 178 533 1066 1157 1681 2314 3362 3649 7298 7921 15842 21853 43706 47437 94874 102973 149609 205946 299218 324761 649522 704969 1409938 1944917 3889834 4221893 8443786 9164597 13315201 18329194 26630402 28903729 57807458 62742241 125484482 173097613 346195226 375748477 751496954 815649133 1185052889 1631298266 2370105778 2572431881 5144863762 5584059449 11168118898 15405687557 30811375114 33441614453 66883228906 72592772837 105469707121 145185545674 210939414242 228946437409 457892874818 496981290961 993962581922 1371106192573 2742212385146 2976303686317 5952607372634 6460756782493 9386803933769 12921513564986 18773607867538 20376232929401 40752465858802 122028451138997 244056902277994 264891028082213 529782056164426 835425550105441 1670851100210882 10860532151370733 21721064302741466
• Sum of all divisors σ(n): 36373236148292946
• Sum of proper divisors (its aliquot sum) s(n): 14652171845551480
• 21721064302741466 is a deficient number, because the sum of its proper divisors (14652171845551480) is less than itself. Its deficiency is 7068892457189986

Bases of 21721064302741466

• Binary: 1001101001010110011000101100001111010001000011111011010₂
• Hexadecimal: 0x4D2B3161E887DA
• Base-36: 5XVH36OLAE2

Squares and roots of 21721064302741466

• 21721064302741466 squared (21721064302741466²) is 471804634443829608532043235829156
• 21721064302741466 cubed (21721064302741466³) is 10248098803085854029138527517409067732286412982696
• The square root of 21721064302741466 is 147380678.1865976691
• The cube root of 21721064302741466 is 279014.6671748729
• Being both a perfect square and a perfect cube, 21721064302741466 is also a perfect sixth number.

Scales and comparisons

• 21,721,064,302,741,466 seconds is equal to 690,662,657 years, 8 weeks, 3 days, 15 hours, 44 minutes, 26 seconds.
• To count from 1 to 21,721,064,302,741,466 would take you about two billion, seventy-one million, nine hundred eighty-seven thousand, nine hundred seventy-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 21721064302741466 cubic inches would be around 23251.2 feet tall.

Recreational maths with 21721064302741466

• 21721064302741466 backwards is 66414720346012712
• The number of decimal digits it has is: 17
• The sum of 21721064302741466's digits is 56
• More coming soon!