308985138

Names of 308985138

• Cardinal: 308985138 can be written as Three hundred eight million, nine hundred eighty-five thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.08985138 × 10⁸

Factors of 308985138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 74334

Divisors of 308985138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 99 126 154 189 198 231 297 378 462 594 693 1386 2079 4158 74311 148622 222933 445866 520177 668799 817421 1040354 1337598 1560531 1634842 2006397 2452263 3121062 4012794 4681593 4904526 5721947 7356789 9363186 11443894 14044779 14713578 17165841 22070367 28089558 34331682 44140734 51497523 102995046 154492569 308985138
• Sum of all divisors σ(n): 856074240
• Sum of proper divisors (its aliquot sum) s(n): 547089102
• 308985138 is an abundant number, because the sum of its proper divisors (547089102) is greater than itself. Its abundance is 238103964

Bases of 308985138

• Binary: 10010011010101011110100110010₂
• Hexadecimal: 0x126ABD32
• Base-36: 53YMGI

Squares and roots of 308985138

• 308985138 squared (308985138²) is 95471815504879044
• 308985138 cubed (308985138³) is 29499372088885591083648072
• The square root of 308985138 is 17577.9730913435
• The cube root of 308985138 is 676.0505911391

Scales and comparisons

• 308,985,138 seconds is equal to 9 years, 42 weeks, 6 days, 5 hours, 12 minutes, 18 seconds.
• To count from 1 to 308,985,138 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 308985138 cubic inches would be around 56.3 feet tall.

Recreational maths with 308985138

• 308985138 backwards is 831589803
• The number of decimal digits it has is: 9
• The sum of 308985138's digits is 45
• More coming soon!