1390343868

Names of 1390343868

• Cardinal: 1390343868 can be written as One billion, three hundred ninety million, three hundred forty-three thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.390343868 × 10⁹

Factors of 1390343868

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 18862

Divisors of 1390343868

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 29 36 58 71 87 116 142 174 213 261 284 348 426 522 639 852 1044 1278 2059 2556 4118 6177 8236 12354 18531 18757 24708 37062 37514 56271 74124 75028 112542 168813 225084 337626 543953 675252 1087906 1331747 1631859 2175812 2663494 3263718 3995241 4895577 5326988 6527436 7990482 9791154 11985723 15980964 19582308 23971446 38620663 47942892 77241326 115861989 154482652 231723978 347585967 463447956 695171934 1390343868
• Sum of all divisors σ(n): 3687072480
• Sum of proper divisors (its aliquot sum) s(n): 2296728612
• 1390343868 is an abundant number, because the sum of its proper divisors (2296728612) is greater than itself. Its abundance is 906384744

Bases of 1390343868

• Binary: 1010010110111101111011010111100₂
• Hexadecimal: 0x52DEF6BC
• Base-36: MZRW70

Squares and roots of 1390343868

• 1390343868 squared (1390343868²) is 1933056071285201424
• 1390343868 cubed (1390343868³) is 2687612655211550679003268032
• The square root of 1390343868 is 37287.3151084923
• The cube root of 1390343868 is 1116.1110518851

Scales and comparisons

• 1,390,343,868 seconds is equal to 44 years, 10 weeks, 5 days, 22 hours, 37 minutes, 48 seconds.
• To count from 1 to 1,390,343,868 would take you about eighty-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 1390343868 cubic inches would be around 93 feet tall.

Recreational maths with 1390343868

• 1390343868 backwards is 8683430931
• The number of decimal digits it has is: 10
• The sum of 1390343868's digits is 45
• More coming soon!