139743128

Names of 139743128

• Cardinal: 139743128 can be written as One hundred thirty-nine million, seven hundred forty-three thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 1.39743128 × 10⁸

Factors of 139743128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 896

Divisors of 139743128

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 7 8 14 17 28 34 56 68 119 136 229 238 458 476 641 916 952 1282 1603 1832 2564 3206 3893 4487 5128 6412 7786 8974 10897 12824 15572 17948 21794 27251 31144 35896 43588 54502 76279 87176 109004 146789 152558 218008 293578 305116 587156 610232 1027523 1174312 2055046 2495413 4110092 4990826 8220184 9981652 17467891 19963304 34935782 69871564 139743128
• Sum of all divisors σ(n): 318945600
• Sum of proper divisors (its aliquot sum) s(n): 179202472
• 139743128 is an abundant number, because the sum of its proper divisors (179202472) is greater than itself. Its abundance is 39459344

Bases of 139743128

• Binary: 1000010101000100111110011000₂
• Hexadecimal: 0x8544F98
• Base-36: 2B76HK

Squares and roots of 139743128

• 139743128 squared (139743128²) is 19528141823224384
• 139743128 cubed (139743128³) is 2728923622404998466033152
• The square root of 139743128 is 11821.2997593327
• The cube root of 139743128 is 518.9316428201

Scales and comparisons

• 139,743,128 seconds is equal to 4 years, 23 weeks, 9 hours, 32 minutes, 8 seconds.
• To count from 1 to 139,743,128 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 139743128 cubic inches would be around 43.2 feet tall.

Recreational maths with 139743128

• 139743128 backwards is 821347931
• The number of decimal digits it has is: 9
• The sum of 139743128's digits is 38
• More coming soon!