142129638

Names of 142129638

• Cardinal: 142129638 can be written as One hundred forty-two million, one hundred twenty-nine thousand, six hundred thirty-eight.

Scientific notation

• Scientific notation: 1.42129638 × 10⁸

Factors of 142129638

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 539

Divisors of 142129638

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 29 42 58 63 87 97 126 174 194 203 261 291 401 406 522 582 609 679 802 873 1203 1218 1358 1746 1827 2037 2406 2807 2813 3609 3654 4074 5614 5626 6111 7218 8421 8439 11629 12222 16842 16878 19691 23258 25263 25317 34887 38897 39382 50526 50634 59073 69774 77794 81403 104661 116691 118146 162806 177219 209322 233382 244209 272279 350073 354438 488418 544558 700146 732627 816837 1128013 1465254 1633674 2256026 2450511 3384039 4901022 6768078 7896091 10152117 15792182 20304234 23688273 47376546 71064819 142129638
• Sum of all divisors σ(n): 368746560
• Sum of proper divisors (its aliquot sum) s(n): 226616922
• 142129638 is an abundant number, because the sum of its proper divisors (226616922) is greater than itself. Its abundance is 84487284

Bases of 142129638

• Binary: 1000011110001011100111100110₂
• Hexadecimal: 0x878B9E6
• Base-36: 2CMBXI

Squares and roots of 142129638

• 142129638 squared (142129638²) is 20200833998011044
• 142129638 cubed (142129638³) is 2871137223435402403722072
• The square root of 142129638 is 11921.8135365389
• The cube root of 142129638 is 521.8690603887

Scales and comparisons

• 142,129,638 seconds is equal to 4 years, 27 weeks, 27 minutes, 18 seconds.
• To count from 1 to 142,129,638 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 142129638 cubic inches would be around 43.5 feet tall.

Recreational maths with 142129638

• 142129638 backwards is 836921241
• The number of decimal digits it has is: 9
• The sum of 142129638's digits is 36
• More coming soon!