21396312

Names of 21396312

• Cardinal: 21396312 can be written as Twenty-one million, three hundred ninety-six thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1396312 × 10⁷

Factors of 21396312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 154

Divisors of 21396312

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 53 54 56 63 72 81 84 89 106 108 126 159 162 168 178 189 212 216 252 267 318 324 356 371 378 424 477 504 534 567 623 636 648 712 742 756 801 954 1068 1113 1134 1246 1272 1431 1484 1512 1602 1869 1908 2136 2226 2268 2403 2492 2862 2968 3204 3339 3738 3816 4293 4452 4536 4717 4806 4984 5607 5724 6408 6678 7209 7476 8586 8904 9434 9612 10017 11214 11448 13356 14151 14418 14952 16821 17172 18868 19224 20034 22428 26712 28302 28836 30051 33019 33642 34344 37736 40068 42453 44856 50463 56604 57672 60102 66038 67284 80136 84906 99057 100926 113208 120204 127359 132076 134568 169812 198114 201852 240408 254718 264152 297171 339624 382077 396228 403704 509436 594342 764154 792456 891513 1018872 1188684 1528308 1783026 2377368 2674539 3056616 3566052 5349078 7132104 10698156 21396312
• Sum of all divisors σ(n): 70567200
• Sum of proper divisors (its aliquot sum) s(n): 49170888
• 21396312 is an abundant number, because the sum of its proper divisors (49170888) is greater than itself. Its abundance is 27774576

Bases of 21396312

• Binary: 1010001100111101101011000₂
• Hexadecimal: 0x1467B58
• Base-36: CQLI0

Squares and roots of 21396312

• 21396312 squared (21396312²) is 457802167201344
• 21396312 cubed (21396312³) is 9795278003716123043328
• The square root of 21396312 is 4625.6147699523
• The cube root of 21396312 is 277.6171601703

Scales and comparisons

• 21,396,312 seconds is equal to 35 weeks, 2 days, 15 hours, 25 minutes, 12 seconds.
• To count from 1 to 21,396,312 would take you about eleven hours!

  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 21396312 cubic inches would be around 23.1 feet tall.

Recreational maths with 21396312

• 21396312 backwards is 21369312
• 21396312 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21396312's digits is 27
• More coming soon!