981428938

Names of 981428938

• Cardinal: 981428938 can be written as Nine hundred eighty-one million, four hundred twenty-eight thousand, nine hundred thirty-eight.

Scientific notation

• Scientific notation: 9.81428938 × 10⁸

Factors of 981428938

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 670

Divisors of 981428938

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 7 14 17 31 34 49 62 98 119 217 238 434 527 613 833 961 1054 1226 1519 1666 1922 3038 3689 4291 6727 7378 8582 10421 13454 16337 19003 20842 25823 30037 32674 38006 47089 51646 60074 72947 94178 114359 133021 145894 228718 266042 323051 510629 589093 646102 800513 931147 1021258 1178186 1601026 1862294 2261357 4123651 4522714 8247302 10014581 15829499 20029162 28865557 31658998 57731114 70102067 140204134 490714469 981428938
• Sum of all divisors σ(n): 1876662756
• Sum of proper divisors (its aliquot sum) s(n): 895233818
• 981428938 is a deficient number, because the sum of its proper divisors (895233818) is less than itself. Its deficiency is 86195120

Bases of 981428938

• Binary: 111010011111110110101011001010₂
• Hexadecimal: 0x3A7F6ACA
• Base-36: G8BFEY

Squares and roots of 981428938

• 981428938 squared (981428938²) is 963202760343807844
• 981428938 cubed (981428938³) is 945315062162891847212989672
• The square root of 981428938 is 31327.7662465743
• The cube root of 981428938 is 993.7709251925

Scales and comparisons

• 981,428,938 seconds is equal to 31 years, 10 weeks, 5 days, 3 hours, 8 minutes, 58 seconds.
• To count from 1 to 981,428,938 would take you about forty-six 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 981428938 cubic inches would be around 82.8 feet tall.

Recreational maths with 981428938

• 981428938 backwards is 839824189
• The number of decimal digits it has is: 9
• The sum of 981428938's digits is 52
• More coming soon!