[go: up one dir, main page]

Search a number
-
+
144673 = 199727
BaseRepresentation
bin100011010100100001
321100110021
4203110201
514112143
63033441
71141534
oct432441
9240407
10144673
1199771
126b881
1350b09
143aa1b
152cced
hex23521

144673 has 4 divisors (see below), whose sum is σ = 145600. Its totient is φ = 143748.

The previous prime is 144671. The next prime is 144701. The reversal of 144673 is 376441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(144673) divides (144673-1)3.

It is a cyclic number.

It is not a de Polignac number, because 144673 - 21 = 144671 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (144671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165 + ... + 562.

It is an arithmetic number, because the mean of its divisors is an integer number (36400).

2144673 is an apocalyptic number.

It is an amenable number.

144673 is a deficient number, since it is larger than the sum of its proper divisors (927).

144673 is an equidigital number, since it uses as much as digits as its factorization.

144673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926.

The product of its digits is 2016, while the sum is 25.

The square root of 144673 is about 380.3590409074. The cubic root of 144673 is about 52.4963565121.

Adding to 144673 its product of digits (2016), we get a square (146689 = 3832).

The spelling of 144673 in words is "one hundred forty-four thousand, six hundred seventy-three".

Divisors: 1 199 727 144673