1389987459

Names of 1389987459

• Cardinal: 1389987459 can be written as One billion, three hundred eighty-nine million, nine hundred eighty-seven thousand, four hundred fifty-nine.

Scientific notation

• Scientific notation: 1.389987459 × 10⁹

Factors of 1389987459

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1208

Divisors of 1389987459

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 107 147 189 243 321 441 567 749 963 1091 1323 1701 2247 2889 3273 3969 5243 6741 7637 8667 9819 11907 15729 20223 22911 26001 29457 47187 53459 60669 68733 88371 116737 141561 160377 182007 206199 265113 350211 424683 481131 618597 817159 1050633 1274049 1443393 1855791 2451477 3151899 4330179 5720113 7354431 9455697 12990537 17160339 22063293 28367091 51481017 66189879 154443051 198569637 463329153 1389987459
• Sum of all divisors σ(n): 2446936128
• Sum of proper divisors (its aliquot sum) s(n): 1056948669
• 1389987459 is a deficient number, because the sum of its proper divisors (1056948669) is less than itself. Its deficiency is 333038790

Bases of 1389987459

• Binary: 1010010110110011000011010000011₂
• Hexadecimal: 0x52D98683
• Base-36: MZK96R

Squares and roots of 1389987459

• 1389987459 squared (1389987459²) is 1932065136177276681
• 1389987459 cubed (1389987459³) is 2685546309257541787363143579
• The square root of 1389987459 is 37282.5355763259
• The cube root of 1389987459 is 1116.0156735571

Scales and comparisons

• 1,389,987,459 seconds is equal to 44 years, 10 weeks, 1 day, 19 hours, 37 minutes, 39 seconds.
• To count from 1 to 1,389,987,459 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 1389987459 cubic inches would be around 93 feet tall.

Recreational maths with 1389987459

• 1389987459 backwards is 9547899831
• 1389987459 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1389987459's digits is 63
• More coming soon!