40408128

Names of 40408128

• Cardinal: 40408128 can be written as Forty million, four hundred eight thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 4.0408128 × 10⁷

Factors of 40408128

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 109

Divisors of 40408128

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 73 93 96 124 144 146 186 192 219 248 279 288 292 372 438 496 558 576 584 657 744 876 961 992 1116 1168 1314 1488 1752 1922 1984 2232 2263 2336 2628 2883 2976 3504 3844 4464 4526 4672 5256 5766 5952 6789 7008 7688 8649 8928 9052 10512 11532 13578 14016 15376 17298 17856 18104 20367 21024 23064 27156 30752 34596 36208 40734 42048 46128 54312 61504 69192 70153 72416 81468 92256 108624 138384 140306 144832 162936 184512 210459 217248 276768 280612 325872 420918 434496 553536 561224 631377 651744 841836 1122448 1262754 1303488 1683672 2244896 2525508 3367344 4489792 5051016 6734688 10102032 13469376 20204064 40408128
• Sum of all divisors σ(n): 121318782
• Sum of proper divisors (its aliquot sum) s(n): 80910654
• 40408128 is an abundant number, because the sum of its proper divisors (80910654) is greater than itself. Its abundance is 40502526

Bases of 40408128

• Binary: 10011010001001010001000000₂
• Hexadecimal: 0x2689440
• Base-36: O2340

Squares and roots of 40408128

• 40408128 squared (40408128²) is 1632816808464384
• 40408128 cubed (40408128³) is 65979070596980312113152
• The square root of 40408128 is 6356.7387865163
• The cube root of 40408128 is 343.1544041013

Scales and comparisons

• 40,408,128 seconds is equal to 1 year, 14 weeks, 5 days, 16 hours, 28 minutes, 48 seconds.
• To count from 1 to 40,408,128 would take you about forty-eight weeks!

  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 40408128 cubic inches would be around 28.6 feet tall.

Recreational maths with 40408128

• 40408128 backwards is 82180404
• The number of decimal digits it has is: 8
• The sum of 40408128's digits is 27
• More coming soon!