397428992

Names of 397428992

• Cardinal: 397428992 can be written as Three hundred ninety-seven million, four hundred twenty-eight thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 3.97428992 × 10⁸

Factors of 397428992

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 162

Divisors of 397428992

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 16 17 29 32 34 47 58 64 67 68 94 116 128 134 136 188 232 256 268 272 376 464 493 536 544 752 799 928 986 1072 1088 1139 1363 1504 1598 1856 1943 1972 2144 2176 2278 2726 3008 3149 3196 3712 3886 3944 4288 4352 4556 5452 6016 6298 6392 7424 7772 7888 8576 9112 10904 12032 12596 12784 15544 15776 17152 18224 21808 23171 25192 25568 31088 31552 33031 36448 43616 46342 50384 51136 53533 62176 63104 66062 72896 87232 91321 92684 100768 102272 107066 124352 126208 132124 145792 174464 182642 185368 201536 204544 214132 248704 264248 291584 348928 365284 370736 403072 428264 497408 528496 730568 741472 806144 856528 1056992 1461136 1482944 1552457 1713056 2113984 2922272 2965888 3104914 3426112 4227968 5844544 5931776 6209828 6852224 8455936 11689088 12419656 13704448 23378176 24839312 49678624 99357248 198714496 397428992
• Sum of all divisors σ(n): 900668160
• Sum of proper divisors (its aliquot sum) s(n): 503239168
• 397428992 is an abundant number, because the sum of its proper divisors (503239168) is greater than itself. Its abundance is 105810176

Bases of 397428992

• Binary: 10111101100000100100100000000₂
• Hexadecimal: 0x17B04900
• Base-36: 6KMA68

Squares and roots of 397428992

• 397428992 squared (397428992²) is 157949803682136064
• 397428992 cubed (397428992³) is 62773831263989224322367488
• The square root of 397428992 is 19935.6211842021
• The cube root of 397428992 is 735.2242930019

Scales and comparisons

• 397,428,992 seconds is equal to 12 years, 33 weeks, 20 hours, 56 minutes, 32 seconds.
• To count from 1 to 397,428,992 would take you about eighteen 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 397428992 cubic inches would be around 61.3 feet tall.

Recreational maths with 397428992

• 397428992 backwards is 299824793
• The number of decimal digits it has is: 9
• The sum of 397428992's digits is 53
• More coming soon!