21425152

Names of 21425152

• Cardinal: 21425152 can be written as Twenty-one million, four hundred twenty-five thousand, one hundred fifty-two.

Scientific notation

• Scientific notation: 2.1425152 × 10⁷

Factors of 21425152

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 70

Divisors of 21425152

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 61 64 98 112 122 128 196 224 244 256 343 392 427 448 488 512 686 784 854 896 976 1024 1372 1568 1708 1792 1952 2744 2989 3136 3416 3584 3904 5488 5978 6272 6832 7168 7808 10976 11956 12544 13664 15616 20923 21952 23912 25088 27328 31232 41846 43904 47824 50176 54656 62464 83692 87808 95648 109312 167384 175616 191296 218624 334768 351232 382592 437248 669536 765184 1339072 1530368 2678144 3060736 5356288 10712576 21425152
• Sum of all divisors σ(n): 50765600
• Sum of proper divisors (its aliquot sum) s(n): 29340448
• 21425152 is an abundant number, because the sum of its proper divisors (29340448) is greater than itself. Its abundance is 7915296

Bases of 21425152

• Binary: 1010001101110110000000000₂
• Hexadecimal: 0x146EC00
• Base-36: CR7R4

Squares and roots of 21425152

• 21425152 squared (21425152²) is 459037138223104
• 21425152 cubed (21425152³) is 9834940460075013111808
• The square root of 21425152 is 4628.7311436289
• The cube root of 21425152 is 277.7418371751

Scales and comparisons

• 21,425,152 seconds is equal to 35 weeks, 2 days, 23 hours, 25 minutes, 52 seconds.
• To count from 1 to 21,425,152 would take you about twenty-three 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 21425152 cubic inches would be around 23.1 feet tall.

Recreational maths with 21425152

• 21425152 backwards is 25152412
• The number of decimal digits it has is: 8
• The sum of 21425152's digits is 22
• More coming soon!