21656480216

Names of 21656480216

• Cardinal: 21656480216 can be written as Twenty-one billion, six hundred fifty-six million, four hundred eighty thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1656480216 × 10¹⁰

Factors of 21656480216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 504

Divisors of 21656480216

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 28 31 49 56 62 67 98 124 134 196 217 248 268 392 397 434 469 536 794 868 938 1519 1588 1736 1876 2077 2779 3038 3176 3283 3752 4154 4489 5558 6076 6566 8308 8978 11116 12152 12307 13132 14539 16616 17956 19453 22232 24614 26264 26599 29078 31423 35912 38906 49228 53198 58156 62846 77812 86149 98456 101773 106396 116312 125692 139159 155624 172298 186193 203546 212792 219961 251384 278318 344596 372386 407092 439922 556636 603043 689192 744772 814184 824569 879844 974113 1113272 1206086 1303351 1489544 1649138 1759688 1782133 1948226 2412172 2606702 3298276 3564266 3896452 4824344 5213404 5771983 6596552 6818791 7128532 7792904 10426808 11543966 12474931 13637582 14257064 23087932 24949862 27275164 40403881 46175864 49899724 54550328 55246123 80807762 87324517 99799448 110492246 161615524 174649034 220984492 323231048 349298068 386722861 441968984 698596136 773445722 1546891444 2707060027 3093782888 5414120054 10828240108 21656480216
• Sum of all divisors σ(n): 49622448960
• Sum of proper divisors (its aliquot sum) s(n): 27965968744
• 21656480216 is an abundant number, because the sum of its proper divisors (27965968744) is greater than itself. Its abundance is 6309488528

Bases of 21656480216

• Binary: 10100001010110100111010100111011000₂
• Hexadecimal: 0x50AD3A9D8
• Base-36: 9Y5PJ2W

Squares and roots of 21656480216

• 21656480216 squared (21656480216²) is 469003135345999406656
• 21656480216 cubed (21656480216³) is 10156957121862606464993402717696
• The square root of 21656480216 is 147161.4087184545
• The cube root of 21656480216 is 2787.3785758365

Scales and comparisons

• 21,656,480,216 seconds is equal to 688 years, 31 weeks, 4 days, 16 hours, 56 minutes, 56 seconds.
• To count from 1 to 21,656,480,216 would take you about one thousand, three hundred seventy-seven 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 21656480216 cubic inches would be around 232.3 feet tall.

Recreational maths with 21656480216

• 21656480216 backwards is 61208465612
• The number of decimal digits it has is: 11
• The sum of 21656480216's digits is 41
• More coming soon!