21367490718338640

Names of 21367490718338640

• Cardinal: 21367490718338640 can be written as Twenty-one quadrillion, three hundred sixty-seven trillion, four hundred ninety billion, seven hundred eighteen million, three hundred thirty-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.136749071833864 × 10¹⁶

Factors of 21367490718338640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 29677070442147

Divisors of 21367490718338640

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 29677070442137 59354140884274 89031211326411 118708281768548 148385352210685 178062422652822 237416563537096 267093633979233 296770704421370 356124845305644 445156056632055 474833127074192 534187267958466 593541408842740 712249690611288 890312113264110 1068374535916932 1187082817685480 1335468169896165 1424499381222576 1780624226528220 2136749071833864 2374165635370960 2670936339792330 3561248453056440 4273498143667728 5341872679584660 7122496906112880 10683745359169320 21367490718338640
• Sum of all divisors σ(n): 71759156329089684
• Sum of proper divisors (its aliquot sum) s(n): 50391665610751044
• 21367490718338640 is an abundant number, because the sum of its proper divisors (50391665610751044) is greater than itself. Its abundance is 29024174892412404

Bases of 21367490718338640

• Binary: 1001011111010011001111010011110000000100000111001010000₂
• Hexadecimal: 0x4BE99E9E020E50
• Base-36: 5UE55Q1FQS0

Squares and roots of 21367490718338640

• 21367490718338640 squared (21367490718338640²) is 456569659598287929637601717049600
• 21367490718338640 cubed (21367490718338640³) is 9755747963741449694749256017330667791074476544000
• The square root of 21367490718338640 is 146176231.7147991057
• The cube root of 21367490718338640 is 277492.4521101037

Scales and comparisons

• 21,367,490,718,338,640 seconds is equal to 679,420,110 years, 44 weeks, 3 days, 3 hours, 24 minutes.
• To count from 1 to 21,367,490,718,338,640 would take you about two billion, thirty-eight million, two hundred sixty thousand, three hundred thirty-two 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 21367490718338640 cubic inches would be around 23124.4 feet tall.

Recreational maths with 21367490718338640

• 21367490718338640 backwards is 04683381709476312
• 21367490718338640 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21367490718338640's digits is 72
• More coming soon!