21721856112

Names of 21721856112

• Cardinal: 21721856112 can be written as Twenty-one billion, seven hundred twenty-one million, eight hundred fifty-six thousand, one hundred twelve.

Scientific notation

• Scientific notation: 2.1721856112 × 10¹⁰

Factors of 21721856112

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 10319

Divisors of 21721856112

• Number of divisors d(n): 150
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 121 132 144 176 198 242 264 363 396 484 528 726 792 968 1089 1331 1452 1584 1936 2178 2662 2904 3993 4356 5324 5808 7986 8712 10303 10648 11979 14641 15972 17424 20606 21296 23958 29282 30909 31944 41212 43923 47916 58564 61818 63888 82424 87846 92727 95832 113333 117128 123636 131769 164848 175692 185454 191664 226666 234256 247272 263538 339999 351384 370908 453332 494544 527076 679998 702768 741816 906664 1019997 1054152 1246663 1359996 1483632 1813328 2039994 2108304 2493326 2719992 3739989 4079988 4986652 5439984 7479978 8159976 9973304 11219967 13713293 14959956 16319952 19946608 22439934 27426586 29919912 41139879 44879868 54853172 59839824 82279758 89759736 109706344 123419637 150846223 164559516 179519472 219412688 246839274 301692446 329119032 452538669 493678548 603384892 658238064 905077338 987357096 1206769784 1357616007 1810154676 1974714192 2413539568 2715232014 3620309352 5430464028 7240618704 10860928056 21721856112
• Sum of all divisors σ(n): 66876205760
• Sum of proper divisors (its aliquot sum) s(n): 45154349648
• 21721856112 is an abundant number, because the sum of its proper divisors (45154349648) is greater than itself. Its abundance is 23432493536

Bases of 21721856112

• Binary: 10100001110101110010011100001110000₂
• Hexadecimal: 0x50EB93870
• Base-36: 9Z8MRG0

Squares and roots of 21721856112

• 21721856112 squared (21721856112²) is 471839032950431756544
• 21721856112 cubed (21721856112³) is 10249219581774505443924182396928
• The square root of 21721856112 is 147383.3644343893
• The cube root of 21721856112 is 2790.1805748929

Scales and comparisons

• 21,721,856,112 seconds is equal to 690 years, 35 weeks, 5 days, 8 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,721,856,112 would take you about one thousand, three hundred eighty-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 21721856112 cubic inches would be around 232.5 feet tall.

Recreational maths with 21721856112

• 21721856112 backwards is 21165812712
• 21721856112 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21721856112's digits is 36
• More coming soon!