21729233216

Names of 21729233216

• Cardinal: 21729233216 can be written as Twenty-one billion, seven hundred twenty-nine million, two hundred thirty-three thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1729233216 × 10¹⁰

Factors of 21729233216

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 13952

Divisors of 21729233216

• Number of divisors d(n): 56
• Complete list of divisors:
  1 2 4 8 16 29 32 58 64 116 232 464 841 928 1682 1856 3364 6728 13456 13921 24389 26912 27842 48778 53824 55684 97556 111368 195112 222736 390224 403709 445472 780448 807418 890944 1560896 1614836 3229672 6459344 11707561 12918688 23415122 25837376 46830244 93660488 187320976 339519269 374641952 679038538 749283904 1358077076 2716154152 5432308304 10864616608 21729233216
• Sum of all divisors σ(n): 44662054440
• Sum of proper divisors (its aliquot sum) s(n): 22932821224
• 21729233216 is an abundant number, because the sum of its proper divisors (22932821224) is greater than itself. Its abundance is 1203588008

Bases of 21729233216

• Binary: 10100001111001010011100100101000000₂
• Hexadecimal: 0x50F29C940
• Base-36: 9ZD0VNK

Squares and roots of 21729233216

• 21729233216 squared (21729233216²) is 472159576155317702656
• 21729233216 cubed (21729233216³) is 10259665545446610999585566621696
• The square root of 21729233216 is 147408.3892320923
• The cube root of 21729233216 is 2790.4964030683

Scales and comparisons

• 21,729,233,216 seconds is equal to 690 years, 47 weeks, 6 days, 18 hours, 6 minutes, 56 seconds.
• To count from 1 to 21,729,233,216 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 21729233216 cubic inches would be around 232.5 feet tall.

Recreational maths with 21729233216

• 21729233216 backwards is 61233292712
• The number of decimal digits it has is: 11
• The sum of 21729233216's digits is 38
• More coming soon!