1081521155

Names of 1081521155

• Cardinal: 1081521155 can be written as One billion, eighty-one million, five hundred twenty-one thousand, one hundred fifty-five.

Scientific notation

• Scientific notation: 1.081521155 × 10⁹

Factors of 1081521155

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 408

Divisors of 1081521155

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 11 13 55 61 65 137 143 181 305 671 685 715 793 905 1507 1781 1991 2353 3355 3965 7535 8357 8723 8905 9955 11041 11765 19591 24797 25883 41785 43615 55205 91927 97955 108641 121451 123985 129415 143533 272767 322361 459635 543205 607255 717665 1195051 1363835 1512617 1578863 1611805 3545971 5975255 7563085 7894315 16638787 17729855 19664021 83193935 98320105 216304231 1081521155
• Sum of all divisors σ(n): 1569649536
• Sum of proper divisors (its aliquot sum) s(n): 488128381
• 1081521155 is a deficient number, because the sum of its proper divisors (488128381) is less than itself. Its deficiency is 593392774

Bases of 1081521155

• Binary: 1000000011101101011010000000011₂
• Hexadecimal: 0x4076B403
• Base-36: HVWR2B

Squares and roots of 1081521155

• 1081521155 squared (1081521155²) is 1169688008712534025
• 1081521155 cubed (1081521155³) is 1265042326172429861694798875
• The square root of 1081521155 is 32886.4889430295
• The cube root of 1081521155 is 1026.4670343393

Scales and comparisons

• 1,081,521,155 seconds is equal to 34 years, 20 weeks, 1 day, 14 hours, 32 minutes, 35 seconds.
• To count from 1 to 1,081,521,155 would take you about sixty-eight 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 1081521155 cubic inches would be around 85.5 feet tall.

Recreational maths with 1081521155

• 1081521155 backwards is 5511251801
• The number of decimal digits it has is: 10
• The sum of 1081521155's digits is 29
• More coming soon!