30357138

Names of 30357138

• Cardinal: 30357138 can be written as Thirty million, three hundred fifty-seven thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.0357138 × 10⁷

Factors of 30357138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 131

Divisors of 30357138

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 14 17 21 34 41 42 51 61 82 102 119 122 123 183 238 246 287 289 357 366 427 574 578 697 714 854 861 867 1037 1281 1394 1722 1734 2023 2074 2091 2501 2562 3111 4046 4182 4879 5002 6069 6222 7259 7503 9758 11849 12138 14518 14637 15006 17507 17629 21777 23698 29274 35014 35258 35547 42517 43554 52521 52887 71094 82943 85034 105042 105774 123403 127551 165886 246806 248829 255102 297619 370209 497658 595238 722789 740418 892857 1445578 1785714 2168367 4336734 5059523 10119046 15178569 30357138
• Sum of all divisors σ(n): 76745088
• Sum of proper divisors (its aliquot sum) s(n): 46387950
• 30357138 is an abundant number, because the sum of its proper divisors (46387950) is greater than itself. Its abundance is 16030812

Bases of 30357138

• Binary: 1110011110011011010010010₂
• Hexadecimal: 0x1CF3692
• Base-36: I2NPU

Squares and roots of 30357138

• 30357138 squared (30357138²) is 921555827551044
• 30357138 cubed (30357138³) is 27975797431671244752072
• The square root of 30357138 is 5509.7312094149
• The cube root of 30357138 is 311.9514018653

Scales and comparisons

• 30,357,138 seconds is equal to 50 weeks, 1 day, 8 hours, 32 minutes, 18 seconds.
• To count from 1 to 30,357,138 would take you about twenty-three weeks!

  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 30357138 cubic inches would be around 26 feet tall.

Recreational maths with 30357138

• 30357138 backwards is 83175303
• The number of decimal digits it has is: 8
• The sum of 30357138's digits is 30
• More coming soon!