Search a number
144204155 = 5434331549
BaseRepresentation
bin10001001100001…
…10000101111011
3101001100022220122
420212012011323
5243404013110
622150443455
73400500164
oct1046060573
9331308818
10144204155
1174443797
124036358b
1323b4cb04
141521a76b
15c9d7255
hex898617b

144204155 has 16 divisors (see below), whose sum is σ = 177592800. Its totient is φ = 112347648.

The previous prime is 144204139. The next prime is 144204163. The reversal of 144204155 is 551402441.

It is not a de Polignac number, because 144204155 - 24 = 144204139 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92321 + ... + 93869.

It is an arithmetic number, because the mean of its divisors is an integer number (11099550).

Almost surely, 2144204155 is an apocalyptic number.

144204155 is a deficient number, since it is larger than the sum of its proper divisors (33388645).

144204155 is a wasteful number, since it uses less digits than its factorization.

144204155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 144204155 is about 12008.5034454756. The cubic root of 144204155 is about 524.3958644018.

Adding to 144204155 its reverse (551402441), we get a palindrome (695606596).

The spelling of 144204155 in words is "one hundred forty-four million, two hundred four thousand, one hundred fifty-five".