138004512690

Names of 138004512690

• Cardinal: 138004512690 can be written as One hundred thirty-eight billion, four million, five hundred twelve thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.3800451269 × 10¹¹

Factors of 138004512690

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 74

Divisors of 138004512690

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 10 11 15 22 30 33 53 55 66 106 110 159 165 265 318 330 530 583 795 1166 1590 1749 2809 2915 3498 5618 5830 8427 8745 14045 16854 17490 28090 30899 42135 61798 84270 92697 148877 154495 185394 297754 308990 446631 463485 744385 893262 926970 1488770 1637647 2233155 3275294 4466310 4912941 7890481 8188235 9825882 15780962 16376470 23671443 24564705 39452405 47342886 49129410 78904810 86795291 118357215 173590582 236714430 260385873 418195493 433976455 520771746 836390986 867952910 1254586479 1301929365 2090977465 2509172958 2603858730 4181954930 4600150423 6272932395 9200300846 12545864790 13800451269 23000752115 27600902538 46001504230 69002256345 138004512690
• Sum of all divisors σ(n): 368269384896
• Sum of proper divisors (its aliquot sum) s(n): 230264872206
• 138004512690 is an abundant number, because the sum of its proper divisors (230264872206) is greater than itself. Its abundance is 92260359516

Bases of 138004512690

• Binary: 10000000100001101101011011111110110010₂
• Hexadecimal: 0x2021B5BFB2
• Base-36: 1RECBNHU

Squares and roots of 138004512690

• 138004512690 squared (138004512690²) is 19045245522804371036100
• 138004512690 cubed (138004512690³) is 2628329827436021507038930898109000
• The square root of 138004512690 is 371489.5862470439
• The cube root of 138004512690 is 5167.7055802499

Scales and comparisons

• 138,004,512,690 seconds is equal to 4,388 years, 6 weeks, 10 hours, 51 minutes, 30 seconds.
• To count from 1 to 138,004,512,690 would take you about eight thousand, seven hundred seventy-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 138004512690 cubic inches would be around 430.6 feet tall.

Recreational maths with 138004512690

• 138004512690 backwards is 096215400831
• The number of decimal digits it has is: 12
• The sum of 138004512690's digits is 39
• More coming soon!