15997678123

Names of 15997678123

• Cardinal: 15997678123 can be written as Fifteen billion, nine hundred ninety-seven million, six hundred seventy-eight thousand, one hundred twenty-three.

Scientific notation

• Scientific notation: 1.5997678123 × 10¹⁰

Factors of 15997678123

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 232

Divisors of 15997678123

• Number of divisors d(n): 60
• Complete list of divisors:
  1 7 31 37 49 157 217 259 343 1099 1147 1369 1519 1813 2401 4867 5809 7693 8029 9583 10633 12691 34069 40663 42439 53851 56203 67081 74431 88837 180079 214933 238483 284641 297073 376957 393421 469567 1260553 1504531 1669381 1992487 2079511 2753947 3286969 6662923 8823871 10531717 11685667 13947409 14556577 46640461 61767097 73722019 101896039 326483227 432369679 516054133 2285382589 15997678123
• Sum of all divisors σ(n): 19925731392
• Sum of proper divisors (its aliquot sum) s(n): 3928053269
• 15997678123 is a deficient number, because the sum of its proper divisors (3928053269) is less than itself. Its deficiency is 12069624854

Bases of 15997678123

• Binary: 1110111001100010010011001000101011₂
• Hexadecimal: 0x3B989322B
• Base-36: 7CKLRFV

Squares and roots of 15997678123

• 15997678123 squared (15997678123²) is 255925705327112803129
• 15997678123 cubed (15997678123³) is 4094217057224897049370009246867
• The square root of 15997678123 is 126481.9280490299
• The cube root of 15997678123 is 2519.7202029887

Scales and comparisons

• 15,997,678,123 seconds is equal to 508 years, 35 weeks, 1 day, 7 hours, 28 minutes, 43 seconds.
• To count from 1 to 15,997,678,123 would take you about one thousand and seventeen 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 15997678123 cubic inches would be around 210 feet tall.

Recreational maths with 15997678123

• 15997678123 backwards is 32187679951
• The number of decimal digits it has is: 11
• The sum of 15997678123's digits is 58
• More coming soon!