21171331216

Names of 21171331216

• Cardinal: 21171331216 can be written as Twenty-one billion, one hundred seventy-one million, three hundred thirty-one thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 2.1171331216 × 10¹⁰

Factors of 21171331216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 931219

Divisors of 21171331216

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 4 7 8 14 16 28 29 49 56 58 98 112 116 196 203 232 392 406 464 784 812 1421 1624 2842 3248 5684 11368 22736 931181 1862362 3724724 6518267 7449448 13036534 14898896 26073068 27004249 45627869 52146136 54008498 91255738 104292272 108016996 182511476 189029743 216033992 365022952 378059486 432067984 730045904 756118972 1323208201 1512237944 2646416402 3024475888 5292832804 10585665608 21171331216
• Sum of all divisors σ(n): 49361957820
• Sum of proper divisors (its aliquot sum) s(n): 28190626604
• 21171331216 is an abundant number, because the sum of its proper divisors (28190626604) is greater than itself. Its abundance is 7019295388

Bases of 21171331216

• Binary: 10011101101111010001110000010010000₂
• Hexadecimal: 0x4EDE8E090
• Base-36: 9Q4V3PS

Squares and roots of 21171331216

• 21171331216 squared (21171331216²) is 448225265457576038656
• 21171331216 cubed (21171331216³) is 9489525554381866110891395485696
• The square root of 21171331216 is 145503.7154714613
• The cube root of 21171331216 is 2766.4068768371

Scales and comparisons

• 21,171,331,216 seconds is equal to 673 years, 9 weeks, 3 days, 13 hours, 20 minutes, 16 seconds.
• To count from 1 to 21,171,331,216 would take you about one thousand, three hundred forty-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 21171331216 cubic inches would be around 230.5 feet tall.

Recreational maths with 21171331216

• 21171331216 backwards is 61213317112
• 21171331216 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21171331216's digits is 28
• More coming soon!