# 144 number

Template:Numbers 100-200 | |

Cardinal | One hundred [and] forty four |

Ordinal | 144th |

Factorization | |

Divisors | 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72 |

Roman numeral | CXLIV |

Binary | 10010000 |

Octal | 220 |

Duodecimal | 100 |

Hexadecimal | 90 |

**144** is the natural number following 143 and preceding 145. **144** is a dozen dozens, or **one gross**.

It is the twelfth Fibonacci number, and the largest one to also be a square, as the square of 12 (which is also its index in the Fibonacci sequence), following 121 and preceding 169.

144 is the smallest number with exactly 15 divisors.

144 is a number that is divisible by the value of its φ function, which returns 48 in this case. Also, there are 21 solutions to the equation φ(*x*) = 144, more than any integer below 144, making it a highly totient number.

, the smallest number whose fifth power is a sum of less than five (smaller) fifth powers. This solution was found in 1967 by L.J. Lander and T.R. Parkin, and disproved a conjecture by Euler.

144 is a Harshad number.

**144** is also:

- The measurement, in cubits, of the wall of New Jerusalem shown by the seventh angel (Holy Bible, Revelation 21:17).
- The Intel 8086 instruction for no operation (NOP).

For the year AD 144, see 144.

da:144 (tal) es:Ciento cuarenta y cuatro fr:144 (nombre) ko:144 it:Centoquarantaquattro ja:144 sl:144 (število) sv:144 (tal) zh:144