159 (one hundred
ndfifty-nine) is a
natural number
In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...
following
158 and preceding
160.
In mathematics
159 is:
*the sum of 3 consecutive
prime number
A prime number (or a prime) is a natural number greater than 1 that is not a Product (mathematics), product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime ...
s: 47 + 53 + 59.
*a
Woodall number.
*equal to the sum of the squares of the digits of its own square in base 15.
:Only 5 numbers (greater than 1) have this property in base 15, none in base 10.
*written CLIX in
Roman numeral
Roman numerals are a numeral system that originated in ancient Rome and remained the usual way of writing numbers throughout Europe well into the Late Middle Ages. Numbers are written with combinations of letters from the Latin alphabet, ea ...
, which spells a
proper noun with multiple meanings.
Given 159, the
Mertens function returns 0.
References
External links
Number Facts and Trivia: 159The Number 159
159th Medical Detachment
{{DEFAULTSORT:159 (Number)
Integers