138452880

Names of 138452880

• Cardinal: 138452880 can be written as One hundred thirty-eight million, four hundred fifty-two thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.3845288 × 10⁸

Factors of 138452880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1882

Divisors of 138452880

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 389 778 1167 1483 1556 1945 2334 2966 3112 3890 4449 4668 5835 5932 6224 7415 7780 8898 9336 11670 11864 14830 15560 17796 18672 22245 23340 23728 29660 31120 35592 44490 46680 59320 71184 88980 93360 118640 177960 355920 576887 1153774 1730661 2307548 2884435 3461322 4615096 5768870 6922644 8653305 9230192 11537740 13845288 17306610 23075480 27690576 34613220 46150960 69226440 138452880
• Sum of all divisors σ(n): 430597440
• Sum of proper divisors (its aliquot sum) s(n): 292144560
• 138452880 is an abundant number, because the sum of its proper divisors (292144560) is greater than itself. Its abundance is 153691680

Bases of 138452880

• Binary: 1000010000001001111110010000₂
• Hexadecimal: 0x8409F90
• Base-36: 2AFIXC

Squares and roots of 138452880

• 138452880 squared (138452880²) is 19169199980294400
• 138452880 cubed (138452880³) is 2654030944567702927872000
• The square root of 138452880 is 11766.6001886697
• The cube root of 138452880 is 517.3296038689

Scales and comparisons

• 138,452,880 seconds is equal to 4 years, 20 weeks, 6 days, 11 hours, 8 minutes.
• To count from 1 to 138,452,880 would take you about 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 138452880 cubic inches would be around 43.1 feet tall.

Recreational maths with 138452880

• 138452880 backwards is 088254831
• The number of decimal digits it has is: 9
• The sum of 138452880's digits is 39
• More coming soon!