142889994

Names of 142889994

• Cardinal: 142889994 can be written as One hundred forty-two million, eight hundred eighty-nine thousand, nine hundred ninety-four.

Scientific notation

• Scientific notation: 1.42889994 × 10⁸

Factors of 142889994

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3608

Divisors of 142889994

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 13 18 19 26 27 38 39 54 57 78 81 114 117 162 171 234 247 342 351 494 513 702 741 1026 1053 1482 1539 2106 2223 3078 3571 4446 6669 7142 10713 13338 20007 21426 32139 40014 46423 64278 67849 92846 96417 135698 139269 192834 203547 278538 289251 407094 417807 578502 610641 835614 882037 1221282 1253421 1764074 1831923 2506842 2646111 3663846 3760263 5292222 5495769 7520526 7938333 10991538 15876666 23814999 47629998 71444997 142889994
• Sum of all divisors σ(n): 363058080
• Sum of proper divisors (its aliquot sum) s(n): 220168086
• 142889994 is an abundant number, because the sum of its proper divisors (220168086) is greater than itself. Its abundance is 77278092

Bases of 142889994

• Binary: 1000100001000101010000001010₂
• Hexadecimal: 0x884540A
• Base-36: 2D2MMI

Squares and roots of 142889994

• 142889994 squared (142889994²) is 20417550385320036
• 142889994 cubed (142889994³) is 2917463652053077632119784
• The square root of 142889994 is 11953.6602762501
• The cube root of 142889994 is 522.7980262951

Scales and comparisons

• 142,889,994 seconds is equal to 4 years, 28 weeks, 1 day, 19 hours, 39 minutes, 54 seconds.
• To count from 1 to 142,889,994 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 142889994 cubic inches would be around 43.6 feet tall.

Recreational maths with 142889994

• 142889994 backwards is 499988241
• 142889994 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 142889994's digits is 54
• More coming soon!