21427642352

Names of 21427642352

• Cardinal: 21427642352 can be written as Twenty-one billion, four hundred twenty-seven million, six hundred forty-two thousand, three hundred fifty-two.

Scientific notation

• Scientific notation: 2.1427642352 × 10¹⁰

Factors of 21427642352

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3112

Divisors of 21427642352

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 23 43 46 86 92 172 184 344 368 541 688 989 1082 1978 2164 2503 3956 4328 5006 7912 8656 10012 12443 15824 20024 23263 24886 40048 46526 49772 57569 93052 99544 107629 115138 186104 199088 215258 230276 372208 430516 460552 535049 861032 921104 1070098 1354123 1722064 2140196 2475467 2708246 4280392 4950934 5416492 8560784 9901868 10832984 19803736 21665968 31144829 39607472 58227289 62289658 116454578 124579316 232909156 249158632 465818312 498317264 931636624 1339227647 2678455294 5356910588 10713821176 21427642352
• Sum of all divisors σ(n): 44428251648
• Sum of proper divisors (its aliquot sum) s(n): 23000609296
• 21427642352 is an abundant number, because the sum of its proper divisors (23000609296) is greater than itself. Its abundance is 1572966944

Bases of 21427642352

• Binary: 10011111101001011111101111111110000₂
• Hexadecimal: 0x4FD2FDFF0
• Base-36: 9UDGQNK

Squares and roots of 21427642352

• 21427642352 squared (21427642352²) is 459143856765224091904
• 21427642352 cubed (21427642352³) is 9838370350883137472452890718208
• The square root of 21427642352 is 146381.8375072537
• The cube root of 21427642352 is 2777.5259786339

Scales and comparisons

• 21,427,642,352 seconds is equal to 681 years, 17 weeks, 2 days, 2 hours, 52 minutes, 32 seconds.
• To count from 1 to 21,427,642,352 would take you about one thousand, three hundred sixty-two 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 21427642352 cubic inches would be around 231.5 feet tall.

Recreational maths with 21427642352

• 21427642352 backwards is 25324672412
• The number of decimal digits it has is: 11
• The sum of 21427642352's digits is 38
• More coming soon!