307907138

Names of 307907138

• Cardinal: 307907138 can be written as Three hundred seven million, nine hundred seven thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.07907138 × 10⁸

Factors of 307907138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 603

Divisors of 307907138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 7 11 14 22 61 73 77 122 146 154 427 449 511 671 803 854 898 1022 1342 1606 3143 4453 4697 4939 5621 6286 8906 9394 9878 11242 27389 31171 32777 34573 48983 54778 62342 65554 69146 97966 191723 229439 301279 342881 360547 383446 458878 602558 685762 721094 1999397 2108953 2523829 3998794 4217906 5047658 13995779 21993367 27991558 43986734 153953569 307907138
• Sum of all divisors σ(n): 594604800
• Sum of proper divisors (its aliquot sum) s(n): 286697662
• 307907138 is a deficient number, because the sum of its proper divisors (286697662) is less than itself. Its deficiency is 21209476

Bases of 307907138

• Binary: 10010010110100100101001000010₂
• Hexadecimal: 0x125A4A42
• Base-36: 53BIO2

Squares and roots of 307907138

• 307907138 squared (307907138²) is 94806805631351044
• 307907138 cubed (307907138³) is 29191692184871583031352072
• The square root of 307907138 is 17547.2829235753
• The cube root of 307907138 is 675.2634640473

Scales and comparisons

• 307,907,138 seconds is equal to 9 years, 41 weeks, 17 hours, 45 minutes, 38 seconds.
• To count from 1 to 307,907,138 would take you about fourteen 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 307907138 cubic inches would be around 56.3 feet tall.

Recreational maths with 307907138

• 307907138 backwards is 831709703
• The number of decimal digits it has is: 9
• The sum of 307907138's digits is 38
• More coming soon!