12938513648

Names of 12938513648

• Cardinal: 12938513648 can be written as Twelve billion, nine hundred thirty-eight million, five hundred thirteen thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.2938513648 × 10¹⁰

Factors of 12938513648

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3040

Divisors of 12938513648

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 31 62 67 124 134 139 248 268 278 496 536 556 1072 1112 2077 2224 2801 4154 4309 5602 8308 8618 9313 11204 16616 17236 18626 22408 33232 34472 37252 44816 68944 74504 86831 149008 173662 187667 288703 347324 375334 389339 577406 694648 750668 778678 1154812 1389296 1501336 1557356 2309624 3002672 3114712 4619248 5817677 6229424 11635354 12069509 23270708 24139018 26085713 46541416 48278036 52171426 93082832 96556072 104342852 193112144 208685704 417371408 808657103 1617314206 3234628412 6469256824 12938513648
• Sum of all divisors σ(n): 26461639680
• Sum of proper divisors (its aliquot sum) s(n): 13523126032
• 12938513648 is an abundant number, because the sum of its proper divisors (13523126032) is greater than itself. Its abundance is 584612384

Bases of 12938513648

• Binary: 1100000011001100100000110011110000₂
• Hexadecimal: 0x303320CF0
• Base-36: 5XZ990W

Squares and roots of 12938513648

• 12938513648 squared (12938513648²) is 167405135419482267904
• 12938513648 cubed (12938513648³) is 2165973629370259528369896353792
• The square root of 12938513648 is 113747.5874381519
• The cube root of 12938513648 is 2347.6217767939

Scales and comparisons

• 12,938,513,648 seconds is equal to 411 years, 21 weeks, 7 hours, 34 minutes, 8 seconds.
• To count from 1 to 12,938,513,648 would take you about eight hundred twenty-two 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 12938513648 cubic inches would be around 195.6 feet tall.

Recreational maths with 12938513648

• 12938513648 backwards is 84631583921
• The number of decimal digits it has is: 11
• The sum of 12938513648's digits is 50
• More coming soon!