12138731299

Names of 12138731299

• Cardinal: 12138731299 can be written as Twelve billion, one hundred thirty-eight million, seven hundred thirty-one thousand, two hundred ninety-nine.

Scientific notation

• Scientific notation: 1.2138731299 × 10¹⁰

Factors of 12138731299

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 80389100

Divisors of 12138731299

• Number of divisors d(n): 4
• Complete list of divisors:
  1 151 80388949 12138731299
• Sum of all divisors σ(n): 12219120400
• Sum of proper divisors (its aliquot sum) s(n): 80389101
• 12138731299 is a deficient number, because the sum of its proper divisors (80389101) is less than itself. Its deficiency is 12058342198

Bases of 12138731299

• Binary: 1011010011100001100101011100100011₂
• Hexadecimal: 0x2D3865723
• Base-36: 5KR350J

Squares and roots of 12138731299

• 12138731299 squared (12138731299²) is 147348797549322227401
• 12138731299 cubed (12138731299³) is 1788627460681972217988914123899
• The square root of 12138731299 is 110175.9107019315
• The cube root of 12138731299 is 2298.2173520865

Scales and comparisons

• 12,138,731,299 seconds is equal to 385 years, 50 weeks, 4 days, 13 hours, 48 minutes, 19 seconds.
• To count from 1 to 12,138,731,299 would take you about seven hundred seventy-one 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 12138731299 cubic inches would be around 191.5 feet tall.

Recreational maths with 12138731299

• 12138731299 backwards is 99213783121
• The number of decimal digits it has is: 11
• The sum of 12138731299's digits is 46
• More coming soon!