139929678

Names of 139929678

• Cardinal: 139929678 can be written as One hundred thirty-nine million, nine hundred twenty-nine thousand, six hundred seventy-eight.

Scientific notation

• Scientific notation: 1.39929678 × 10⁸

Factors of 139929678

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 216

Divisors of 139929678

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 63 97 107 126 194 214 291 321 582 642 679 749 873 963 1358 1498 1746 1926 2037 2247 4074 4494 6111 6741 10379 11449 12222 13482 20758 22898 31137 34347 62274 68694 72653 80143 93411 103041 145306 160286 186822 206082 217959 240429 435918 480858 653877 721287 1110553 1307754 1442574 2221106 3331659 6663318 7773871 9994977 15547742 19989954 23321613 46643226 69964839 139929678
• Sum of all divisors σ(n): 353366832
• Sum of proper divisors (its aliquot sum) s(n): 213437154
• 139929678 is an abundant number, because the sum of its proper divisors (213437154) is greater than itself. Its abundance is 73507476

Bases of 139929678

• Binary: 1000010101110010100001001110₂
• Hexadecimal: 0x857284E
• Base-36: 2BB6FI

Squares and roots of 139929678

• 139929678 squared (139929678²) is 19580314785183684
• 139929678 cubed (139929678³) is 2739867143029392072973752
• The square root of 139929678 is 11829.1875460659
• The cube root of 139929678 is 519.1624559649

Scales and comparisons

• 139,929,678 seconds is equal to 4 years, 23 weeks, 2 days, 13 hours, 21 minutes, 18 seconds.
• To count from 1 to 139,929,678 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 139929678 cubic inches would be around 43.3 feet tall.

Recreational maths with 139929678

• 139929678 backwards is 876929931
• The number of decimal digits it has is: 9
• The sum of 139929678's digits is 54
• More coming soon!