150 (number)

From Wikipedia, the free encyclopedia

150 is the natural number following 149 and preceding 151.

List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	One hundred [and] fifty
Ordinal	150th
Factorization	$2 \cdot 3 \cdot 5^2$
Divisors	1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150
Roman numeral	CL
Binary	10010110
Hexadecimal	96

One hundred [and] fifty is the sum of eight consecutive primes (7 + 11 + 13 + 17 + 19 + 23 + 29 + 31). Given 150, the Mertens function returns 0.

The sum of Euler's totient function φ(x) over the first twenty-two integers is 150.

150 is a Harshad number.

The 150th anniversary of a town, business, or like organization is called a sesquicentennial. (The prefix "sesqui-" means "and a half".)

One hundred [and] fifty is also:

The number of Psalms in the Bible. The last Psalm, Psalm 150, is perhaps the Psalm most often set to music.
The number of sons of Ulam, who were combat archers, in the Census of the men of Israel upon return from exile (Holy Bible, 1 Chronicles 8:40). Also, the number of sons of Parosh and Zechariah at the Census upon return from Babylonia (Ezra 8:3).
The model number of the Ford F-150 truck.
The number of degrees in the quincunx astrological aspect explored by Johannes Kepler.
Dunbar's number, a theoretical value with implications in sociology and anthropology.
The year AD 150 or 150 BC.
Originally thought to be the number of Pokémon in the Original games before Mew

[edit] Other numbers in the 150s

One hundred [and] fifty-one has its own article.

One hundred [and] fifty-two has its own article.

One hundred [and] fifty-three has its own article.

One hundred [and] fifty-four has its own article.

One hundred [and] fifty-five has its own article.

One hundred [and] fifty-six has its own article.

One hundred [and] fifty-seven (157, CLVII) is the natural number following one hundred [and] fifty-six and preceding one hundred [and] fifty-eight. It is the 37th prime number, the next is one hundred [and] sixty-three. The next odd number is 159, a semiprime, thus 157 is a Chen prime.

One hundred fifty-seven is also:

The year AD 157 or 157 BC.

One hundred [and] fifty-eight (158, CLVIII) is the natural number following one hundred [and] fifty-seven and preceding one hundred [and] fifty-eight. It is a composite number, and its factorization is

$158 = 2 \cdot 79.$

It is a nontotient since there is no integer with 158 coprimes below it.

One hundred [and] fifty-eight is also:

The year AD 158 or 158 BC.

One hundred [and] fifty-nine (159, CLIX) is the natural number following one hundred [and] fifty-eight and preceding one hundred [and] sixty. It is a composite number, and its factorization

$159 = 3 \cdot 53.$