149909970

Names of 149909970

• Cardinal: 149909970 can be written as One hundred forty-nine million, nine hundred nine thousand, nine hundred seventy.

Scientific notation

• Scientific notation: 1.4990997 × 10⁸

Factors of 149909970

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 13539

Divisors of 149909970

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 53 70 105 106 159 210 265 318 371 530 742 795 1113 1590 1855 2226 3710 5565 11130 13469 26938 40407 67345 80814 94283 134690 188566 202035 282849 404070 471415 565698 713857 942830 1414245 1427714 2141571 2828490 3569285 4283142 4996999 7138570 9993998 10707855 14990997 21415710 24984995 29981994 49969990 74954985 149909970
• Sum of all divisors σ(n): 418970880
• Sum of proper divisors (its aliquot sum) s(n): 269060910
• 149909970 is an abundant number, because the sum of its proper divisors (269060910) is greater than itself. Its abundance is 119150940

Bases of 149909970

• Binary: 1000111011110111000111010010₂
• Hexadecimal: 0x8EF71D2
• Base-36: 2H939U

Squares and roots of 149909970

• 149909970 squared (149909970²) is 22472999105400900
• 149909970 cubed (149909970³) is 3368926621700675756973000
• The square root of 149909970 is 12243.7727028885
• The cube root of 149909970 is 531.2229620379

Scales and comparisons

• 149,909,970 seconds is equal to 4 years, 39 weeks, 6 days, 1 hour, 39 minutes, 30 seconds.
• To count from 1 to 149,909,970 would take you about seven 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 149909970 cubic inches would be around 44.3 feet tall.

Recreational maths with 149909970

• 149909970 backwards is 079909941
• The number of decimal digits it has is: 9
• The sum of 149909970's digits is 48
• More coming soon!