12998090

Names of 12998090

• Cardinal: 12998090 can be written as Twelve million, nine hundred ninety-eight thousand and ninety.

Scientific notation

• Scientific notation: 1.299809 × 10⁷

Factors of 12998090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 399

Divisors of 12998090

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 14 19 29 35 38 58 70 95 133 145 190 203 266 290 337 406 551 665 674 1015 1102 1330 1685 2030 2359 2755 3370 3857 4718 5510 6403 7714 9773 11795 12806 19285 19546 23590 32015 38570 44821 48865 64030 68411 89642 97730 136822 185687 224105 342055 371374 448210 684110 928435 1299809 1856870 2599618 6499045 12998090
• Sum of all divisors σ(n): 29203200
• Sum of proper divisors (its aliquot sum) s(n): 16205110
• 12998090 is an abundant number, because the sum of its proper divisors (16205110) is greater than itself. Its abundance is 3207020

Bases of 12998090

• Binary: 110001100101010111001010₂
• Hexadecimal: 0xC655CA
• Base-36: 7QLE2

Squares and roots of 12998090

• 12998090 squared (12998090²) is 168950343648100
• 12998090 cubed (12998090³) is 2196031772268932129000
• The square root of 12998090 is 3605.2863963907
• The cube root of 12998090 is 235.1219526971

Scales and comparisons

• 12,998,090 seconds is equal to 21 weeks, 3 days, 10 hours, 34 minutes, 50 seconds.
• To count from 1 to 12,998,090 would take you about thirty-two 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 12998090 cubic inches would be around 19.6 feet tall.

Recreational maths with 12998090

• 12998090 backwards is 09089921
• 12998090 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12998090's digits is 38
• More coming soon!