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144155 = 5112621
BaseRepresentation
bin100011001100011011
321022202002
4203030123
514103110
63031215
71140164
oct431433
9238662
10144155
1199340
126b50b
13507cb
143a76b
152caa5
hex2331b

144155 has 8 divisors (see below), whose sum is σ = 188784. Its totient is φ = 104800.

The previous prime is 144139. The next prime is 144161. The reversal of 144155 is 551441.

144155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144155 - 24 = 144139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 1365.

It is an arithmetic number, because the mean of its divisors is an integer number (23598).

2144155 is an apocalyptic number.

144155 is a deficient number, since it is larger than the sum of its proper divisors (44629).

144155 is a wasteful number, since it uses less digits than its factorization.

144155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637.

The product of its digits is 400, while the sum is 20.

The square root of 144155 is about 379.6774947241. The cubic root of 144155 is about 52.4336273867.

Adding to 144155 its reverse (551441), we get a palindrome (695596).

The spelling of 144155 in words is "one hundred forty-four thousand, one hundred fifty-five".

Divisors: 1 5 11 55 2621 13105 28831 144155