138978679296

Names of 138978679296

• Cardinal: 138978679296 can be written as One hundred thirty-eight billion, nine hundred seventy-eight million, six hundred seventy-nine thousand, two hundred ninety-six.

Scientific notation

• Scientific notation: 1.38978679296 × 10¹¹

Factors of 138978679296

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 3726

Divisors of 138978679296

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 53 64 96 106 128 159 192 212 256 318 384 424 512 547 636 768 848 1094 1272 1536 1641 1696 2188 2544 3121 3282 3392 4376 5088 6242 6564 6784 8752 9363 10176 12484 13128 13568 17504 18726 20352 24968 26256 27136 28991 35008 37452 40704 49936 52512 57982 70016 74904 81408 86973 99872 105024 115964 140032 149808 165413 173946 199744 210048 231928 280064 299616 330826 347892 399488 420096 463856 496239 599232 661652 695784 798976 840192 927712 992478 1198464 1323304 1391568 1597952 1707187 1855424 1984956 2396928 2646608 2783136 3414374 3710848 3969912 4793856 5121561 5293216 5566272 6828748 7421696 7939824 10243122 10586432 11132544 13657496 14843392 15879648 20486244 21172864 22265088 27314992 31759296 40972488 42345728 44530176 54629984 63518592 81944976 84691456 90480911 109259968 127037184 163889952 180961822 218519936 254074368 271442733 327779904 361923644 437039872 542885466 655559808 723847288 874079744 1085770932 1311119616 1447694576 2171541864 2622239232 2895389152 4343083728 5790778304 8686167456 11581556608 17372334912 23163113216 34744669824 46326226432 69489339648 138978679296
• Sum of all divisors σ(n): 378044428608
• Sum of proper divisors (its aliquot sum) s(n): 239065749312
• 138978679296 is an abundant number, because the sum of its proper divisors (239065749312) is greater than itself. Its abundance is 100087070016

Bases of 138978679296

• Binary: 10000001011011110001100101101000000000₂
• Hexadecimal: 0x205BC65A00
• Base-36: 1RUGBF9C

Squares and roots of 138978679296

• 138978679296 squared (138978679296²) is 19315073298860419055616
• 138978679296 cubed (138978679296³) is 2684383377581054942198623251726336
• The square root of 138978679296 is 372798.4432585523
• The cube root of 138978679296 is 5179.8366015353

Scales and comparisons

• 138,978,679,296 seconds is equal to 4,419 years, 4 weeks, 5 days, 12 hours, 41 minutes, 36 seconds.
• To count from 1 to 138,978,679,296 would take you about eight thousand, eight hundred thirty-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 138978679296 cubic inches would be around 431.7 feet tall.

Recreational maths with 138978679296

• 138978679296 backwards is 692976879831
• The number of decimal digits it has is: 12
• The sum of 138978679296's digits is 75
• More coming soon!