389412293978

Names of 389412293978

• Cardinal: 389412293978 can be written as Three hundred eighty-nine billion, four hundred twelve million, two hundred ninety-three thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 3.89412293978 × 10¹¹

Factors of 389412293978

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6883

Divisors of 389412293978

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 37 61 73 74 122 146 181 362 2257 2701 4453 4514 5402 6529 6697 8906 11041 13058 13213 13394 22082 26426 164761 241573 329522 398269 408517 476617 483146 488881 796538 805993 817034 953234 977762 1181749 1611986 2363498 14735953 17634829 29073637 29471906 29821741 35269658 43724713 58147274 59643482 72086689 86267677 87449426 144173378 172535354 1075724569 2151449138 2667207493 3191904049 5262328297 5334414986 6383808098 10524656594 194706146989 389412293978
• Sum of all divisors σ(n): 621602610720
• Sum of proper divisors (its aliquot sum) s(n): 232190316742
• 389412293978 is a deficient number, because the sum of its proper divisors (232190316742) is less than itself. Its deficiency is 157221977236

Bases of 389412293978

• Binary: 101101010101010110010000000110101011010₂
• Hexadecimal: 0x5AAAC80D5A
• Base-36: 4YW60X22

Squares and roots of 389412293978

• 389412293978 squared (389412293978²) is 151641934701208295064484
• 389412293978 cubed (389412293978³) is 59051233655259604189463009874877352
• The square root of 389412293978 is 624029.0810354915
• The cube root of 389412293978 is 7302.4717593219

Scales and comparisons

• 389,412,293,978 seconds is equal to 12,382 years, 5 weeks, 3 days, 17 hours, 39 minutes, 38 seconds.
• To count from 1 to 389,412,293,978 would take you about twenty-four thousand, seven hundred sixty-four 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 389412293978 cubic inches would be around 608.5 feet tall.

Recreational maths with 389412293978

• 389412293978 backwards is 879392214983
• The number of decimal digits it has is: 12
• The sum of 389412293978's digits is 65
• More coming soon!