394388946

Names of 394388946

• Cardinal: 394388946 can be written as Three hundred ninety-four million, three hundred eighty-eight thousand, nine hundred forty-six.

Scientific notation

• Scientific notation: 3.94388946 × 10⁸

Factors of 394388946

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 318

Divisors of 394388946

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 49 54 63 98 107 126 147 189 199 214 294 321 343 378 398 441 597 642 686 749 882 963 1029 1194 1323 1393 1498 1791 1926 2058 2247 2646 2786 2889 3087 3582 4179 4494 5243 5373 5778 6174 6741 8358 9261 9751 10486 10746 12537 13482 15729 18522 19502 20223 21293 25074 29253 31458 36701 37611 40446 42586 47187 58506 63879 68257 73402 75222 87759 94374 110103 127758 136514 141561 149051 175518 191637 204771 220206 263277 283122 298102 330309 383274 409542 447153 526554 574911 614313 660618 894306 990927 1043357 1149822 1228626 1341459 1842939 1981854 2086714 2682918 3130071 3685878 4024377 6260142 7303499 8048754 9390213 14606998 18780426 21910497 28170639 43820994 56341278 65731491 131462982 197194473 394388946
• Sum of all divisors σ(n): 1036800000
• Sum of proper divisors (its aliquot sum) s(n): 642411054
• 394388946 is an abundant number, because the sum of its proper divisors (642411054) is greater than itself. Its abundance is 248022108

Bases of 394388946

• Binary: 10111100000011110010111010010₂
• Hexadecimal: 0x1781E5D2
• Base-36: 6IT4GI

Squares and roots of 394388946

• 394388946 squared (394388946²) is 155542640726990916
• 394388946 cubed (394388946³) is 61344298134374621112814536
• The square root of 394388946 is 19859.2282327385
• The cube root of 394388946 is 733.3448469725

Scales and comparisons

• 394,388,946 seconds is equal to 12 years, 28 weeks, 16 hours, 29 minutes, 6 seconds.
• To count from 1 to 394,388,946 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 394388946 cubic inches would be around 61.1 feet tall.

Recreational maths with 394388946

• 394388946 backwards is 649883493
• 394388946 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 394388946's digits is 54
• More coming soon!