1393988816

Names of 1393988816

• Cardinal: 1393988816 can be written as One billion, three hundred ninety-three million, nine hundred eighty-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.393988816 × 10⁹

Factors of 1393988816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 834

Divisors of 1393988816

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 11 16 22 44 88 103 131 176 206 262 412 524 587 824 1048 1133 1174 1441 1648 2096 2266 2348 2882 4532 4696 5764 6457 9064 9392 11528 12914 13493 18128 23056 25828 26986 51656 53972 60461 76897 103312 107944 120922 148423 153794 215888 241844 296846 307588 483688 593692 615176 665071 845867 967376 1187384 1230352 1330142 1691734 2374768 2660284 3383468 5320568 6766936 7920391 10641136 13533872 15840782 31681564 63363128 87124301 126726256 174248602 348497204 696994408 1393988816
• Sum of all divisors σ(n): 3002807808
• Sum of proper divisors (its aliquot sum) s(n): 1608818992
• 1393988816 is an abundant number, because the sum of its proper divisors (1608818992) is greater than itself. Its abundance is 214830176

Bases of 1393988816

• Binary: 1010011000101101001010011010000₂
• Hexadecimal: 0x531694D0
• Base-36: N1Y0NK

Squares and roots of 1393988816

• 1393988816 squared (1393988816²) is 1943204819133081856
• 1393988816 cubed (1393988816³) is 2708805785068818922876522496
• The square root of 1393988816 is 37336.1596311137
• The cube root of 1393988816 is 1117.0855390729

Scales and comparisons

• 1,393,988,816 seconds is equal to 44 years, 16 weeks, 6 days, 3 hours, 6 minutes, 56 seconds.
• To count from 1 to 1,393,988,816 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 1393988816 cubic inches would be around 93.1 feet tall.

Recreational maths with 1393988816

• 1393988816 backwards is 6188893931
• The number of decimal digits it has is: 10
• The sum of 1393988816's digits is 56
• More coming soon!