40394172

Names of 40394172

• Cardinal: 40394172 can be written as Forty million, three hundred ninety-four thousand, one hundred seventy-two.

Scientific notation

• Scientific notation: 4.0394172 × 10⁷

Factors of 40394172

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 617

Divisors of 40394172

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 71 78 84 91 142 156 182 213 273 284 364 426 497 521 546 852 923 994 1042 1092 1491 1563 1846 1988 2084 2769 2982 3126 3647 3692 5538 5964 6252 6461 6773 7294 10941 11076 12922 13546 14588 19383 20319 21882 25844 27092 36991 38766 40638 43764 47411 73982 77532 81276 94822 110973 142233 147964 189644 221946 258937 284466 443892 480883 517874 568932 776811 961766 1035748 1442649 1553622 1923532 2885298 3107244 3366181 5770596 6732362 10098543 13464724 20197086 40394172
• Sum of all divisors σ(n): 117863424
• Sum of proper divisors (its aliquot sum) s(n): 77469252
• 40394172 is an abundant number, because the sum of its proper divisors (77469252) is greater than itself. Its abundance is 37075080

Bases of 40394172

• Binary: 10011010000101110110111100₂
• Hexadecimal: 0x2685DBC
• Base-36: O1SCC

Squares and roots of 40394172

• 40394172 squared (40394172²) is 1631689131565584
• 40394172 cubed (40394172³) is 65910731430990829376448
• The square root of 40394172 is 6355.6409590221
• The cube root of 40394172 is 343.1148937803

Scales and comparisons

• 40,394,172 seconds is equal to 1 year, 14 weeks, 5 days, 12 hours, 36 minutes, 12 seconds.
• To count from 1 to 40,394,172 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 40394172 cubic inches would be around 28.6 feet tall.

Recreational maths with 40394172

• 40394172 backwards is 27149304
• The number of decimal digits it has is: 8
• The sum of 40394172's digits is 30
• More coming soon!