1390738490

Names of 1390738490

• Cardinal: 1390738490 can be written as One billion, three hundred ninety million, seven hundred thirty-eight thousand, four hundred ninety.

Scientific notation

• Scientific notation: 1.39073849 × 10⁹

Factors of 1390738490

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 139073856

Divisors of 1390738490

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 139073849 278147698 695369245 1390738490
• Sum of all divisors σ(n): 2503329300
• Sum of proper divisors (its aliquot sum) s(n): 1112590810
• 1390738490 is a deficient number, because the sum of its proper divisors (1112590810) is less than itself. Its deficiency is 278147680

Bases of 1390738490

• Binary: 1010010111001001111110000111010₂
• Hexadecimal: 0x52E4FC3A
• Base-36: N00COQ

Squares and roots of 1390738490

• 1390738490 squared (1390738490²) is 1934153547567480100
• 1390738490 cubed (1390738490³) is 2689901784172140447379049000
• The square root of 1390738490 is 37292.6063717729
• The cube root of 1390738490 is 1116.2166373501

Scales and comparisons

• 1,390,738,490 seconds is equal to 44 years, 11 weeks, 3 days, 12 hours, 14 minutes, 50 seconds.
• To count from 1 to 1,390,738,490 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 1390738490 cubic inches would be around 93 feet tall.

Recreational maths with 1390738490

• 1390738490 backwards is 0948370931
• The number of decimal digits it has is: 10
• The sum of 1390738490's digits is 44
• More coming soon!