400187751145

Names of 400187751145

• Cardinal: 400187751145 can be written as Four hundred billion, one hundred eighty-seven million, seven hundred fifty-one thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 4.00187751145 × 10¹¹

Factors of 400187751145

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 125270

Divisors of 400187751145

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 7 13 31 35 65 91 155 217 227 403 455 1085 1135 1589 2015 2821 2951 7037 7945 14105 14755 20657 35185 49259 91481 103285 124987 246295 457405 624935 640367 874909 1624831 3201835 3874597 4374545 8124155 11373817 19372985 27122179 28372049 50369761 56869085 135610895 141860245 198604343 251848805 352588327 368836637 879533519 993021715 1762941635 1844183185 2581856459 4397667595 6156734633 11433935747 12909282295 30783673165 57169678735 80037550229 400187751145
• Sum of all divisors σ(n): 612805165056
• Sum of proper divisors (its aliquot sum) s(n): 212617413911
• 400187751145 is a deficient number, because the sum of its proper divisors (212617413911) is less than itself. Its deficiency is 187570337234

Bases of 400187751145

• Binary: 101110100101101000011000111101011101001₂
• Hexadecimal: 0x5D2D0C7AE9
• Base-36: 53UDGD0P

Squares and roots of 400187751145

• 400187751145 squared (400187751145²) is 160150236166492448811025
• 400187751145 cubed (400187751145³) is 64090162856809258892308123832373625
• The square root of 400187751145 is 632603.9449331627
• The cube root of 400187751145 is 7369.2156188481

Scales and comparisons

• 400,187,751,145 seconds is equal to 12,724 years, 38 weeks, 16 hours, 12 minutes, 25 seconds.
• To count from 1 to 400,187,751,145 would take you about twenty-five thousand, four hundred forty-nine 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 400187751145 cubic inches would be around 614.1 feet tall.

Recreational maths with 400187751145

• 400187751145 backwards is 541157781004
• The number of decimal digits it has is: 12
• The sum of 400187751145's digits is 43
• More coming soon!