21216441213

Names of 21216441213

• Cardinal: 21216441213 can be written as Twenty-one billion, two hundred sixteen million, four hundred forty-one thousand, two hundred thirteen.

Scientific notation

• Scientific notation: 2.1216441213 × 10¹⁰

Factors of 21216441213

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4295

Divisors of 21216441213

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 11 27 33 73 79 81 99 219 237 297 657 711 803 869 891 1971 2133 2409 2607 4129 5767 5913 6399 7227 7821 12387 17301 21681 23463 37161 45419 51903 63437 65043 70389 111483 136257 155709 190311 301417 326191 334449 408771 467127 570933 904251 978573 1226313 1712799 2712753 2935719 3315587 3588101 3678939 5138397 8138259 8807157 9946761 10764303 23811943 24414777 26421471 29840283 32292909 71435829 89520849 96878727 214307487 261931373 268562547 290636181 642922461 785794119 1928767383 2357382357 7072147071 21216441213
• Sum of all divisors σ(n): 35500819200
• Sum of proper divisors (its aliquot sum) s(n): 14284377987
• 21216441213 is a deficient number, because the sum of its proper divisors (14284377987) is less than itself. Its deficiency is 6932063226

Bases of 21216441213

• Binary: 10011110000100110010011001101111101₂
• Hexadecimal: 0x4F099337D
• Base-36: 9QVPYT9

Squares and roots of 21216441213

• 21216441213 squared (21216441213²) is 450137377744684911369
• 21216441213 cubed (21216441213³) is 9550313212694081945268503850597
• The square root of 21216441213 is 145658.6462006291
• The cube root of 21216441213 is 2768.3702879089

Scales and comparisons

• 21,216,441,213 seconds is equal to 674 years, 32 weeks, 15 hours, 53 minutes, 33 seconds.
• To count from 1 to 21,216,441,213 would take you about one thousand, three hundred forty-nine 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 21216441213 cubic inches would be around 230.7 feet tall.

Recreational maths with 21216441213

• 21216441213 backwards is 31214461212
• 21216441213 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21216441213's digits is 27
• More coming soon!