21331653264

Names of 21331653264

• Cardinal: 21331653264 can be written as Twenty-one billion, three hundred thirty-one million, six hundred fifty-three thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 2.1331653264 × 10¹⁰

Factors of 21331653264

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9055

Divisors of 21331653264

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 2521 5042 6529 7563 10084 13058 15126 19587 20168 22689 26116 30252 39174 40336 45378 52232 58761 60504 68067 78348 90756 104464 117522 121008 136134 156696 176283 181512 204201 235044 272268 313392 352566 363024 408402 470088 528849 544536 705132 816804 940176 1057698 1089072 1410264 1633608 2115396 2820528 3267216 4230792 8461584 16459609 32919218 49378827 65838436 98757654 131676872 148136481 197515308 263353744 296272962 395030616 444409443 592545924 790061232 888818886 1185091848 1333228329 1777637772 2370183696 2666456658 3555275544 5332913316 7110551088 10665826632 21331653264
• Sum of all divisors σ(n): 61773943660
• Sum of proper divisors (its aliquot sum) s(n): 40442290396
• 21331653264 is an abundant number, because the sum of its proper divisors (40442290396) is greater than itself. Its abundance is 19110637132

Bases of 21331653264

• Binary: 10011110111011101110011001010010000₂
• Hexadecimal: 0x4F7773290
• Base-36: 9SSBD00

Squares and roots of 21331653264

• 21331653264 squared (21331653264²) is 455039430975521853696
• 21331653264 cubed (21331653264³) is 9706743363017693454497608863744
• The square root of 21331653264 is 146053.5972306057
• The cube root of 21331653264 is 2773.3722895529

Scales and comparisons

• 21,331,653,264 seconds is equal to 678 years, 14 weeks, 4 days, 3 hours, 14 minutes, 24 seconds.
• To count from 1 to 21,331,653,264 would take you about one 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 21331653264 cubic inches would be around 231.1 feet tall.

Recreational maths with 21331653264

• 21331653264 backwards is 46235613312
• 21331653264 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21331653264's digits is 36
• More coming soon!