31394484387

Names of 31394484387

• Cardinal: 31394484387 can be written as Thirty-one billion, three hundred ninety-four million, four hundred eighty-four thousand, three hundred eighty-seven.

Scientific notation

• Scientific notation: 3.1394484387 × 10¹⁰

Factors of 31394484387

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 7697

Divisors of 31394484387

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 147 189 243 343 441 567 1029 1323 1701 2401 3087 3969 7203 7687 9261 11907 16807 21609 23061 27783 50421 53809 64827 69183 83349 151263 161427 194481 207549 376663 453789 484281 583443 622647 1129989 1361367 1452843 1867941 2636641 3389967 4084101 4358529 7909923 10169901 13075587 18456487 23729769 30509703 55369461 71189307 91529109 129195409 166108383 213567921 387586227 498325149 640703763 1162758681 1494975447 3488276043 4484926341 10464828129 31394484387
• Sum of all divisors σ(n): 54871654656
• Sum of proper divisors (its aliquot sum) s(n): 23477170269
• 31394484387 is a deficient number, because the sum of its proper divisors (23477170269) is less than itself. Its deficiency is 7917314118

Bases of 31394484387

• Binary: 11101001111010000011101000010100011₂
• Hexadecimal: 0x74F41D0A3
• Base-36: EF7GR6R

Squares and roots of 31394484387

• 31394484387 squared (31394484387²) is 985613649925586765769
• 31394484387 cubed (31394484387³) is 30942832344202917429748696548603
• The square root of 31394484387 is 177184.8875807415
• The cube root of 31394484387 is 3154.6495337143

Scales and comparisons

• 31,394,484,387 seconds is equal to 998 years, 12 weeks, 6 days, 2 hours, 6 minutes, 27 seconds.
• To count from 1 to 31,394,484,387 would take you about one thousand, nine hundred ninety-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 31394484387 cubic inches would be around 262.9 feet tall.

Recreational maths with 31394484387

• 31394484387 backwards is 78348449313
• The number of decimal digits it has is: 11
• The sum of 31394484387's digits is 54
• More coming soon!