1028790986

Names of 1028790986

• Cardinal: 1028790986 can be written as One billion, twenty-eight million, seven hundred ninety thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 1.028790986 × 10⁹

Factors of 1028790986

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 355

Divisors of 1028790986

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 19 31 38 61 62 103 122 139 206 278 589 1159 1178 1891 1957 2318 2641 3193 3782 3914 4309 5282 6283 6386 8479 8618 12566 14317 16958 28634 35929 60667 71858 81871 119377 121334 161101 163742 194773 238754 262849 272023 322202 389546 443827 525698 544046 873337 887654 1746674 3700687 4994131 7401374 8432713 9988262 16593403 16865426 27073447 33186806 54146894 514395493 1028790986
• Sum of all divisors σ(n): 1733222400
• Sum of proper divisors (its aliquot sum) s(n): 704431414
• 1028790986 is a deficient number, because the sum of its proper divisors (704431414) is less than itself. Its deficiency is 324359572

Bases of 1028790986

• Binary: 111101010100100001101011001010₂
• Hexadecimal: 0x3D521ACA
• Base-36: H0IK7E

Squares and roots of 1028790986

• 1028790986 squared (1028790986²) is 1058410892874852196
• 1028790986 cubed (1028790986³) is 1088883586073859565327105256
• The square root of 1028790986 is 32074.7717996557
• The cube root of 1028790986 is 1009.5063384977

Scales and comparisons

• 1,028,790,986 seconds is equal to 32 years, 37 weeks, 7 hours, 16 minutes, 26 seconds.
• To count from 1 to 1,028,790,986 would take you about sixty-five 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 1028790986 cubic inches would be around 84.1 feet tall.

Recreational maths with 1028790986

• 1028790986 backwards is 6890978201
• The number of decimal digits it has is: 10
• The sum of 1028790986's digits is 50
• More coming soon!