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144040111 = 1213118747
BaseRepresentation
bin10001001010111…
…10000010101111
3101001000222212221
420211132002233
5243333240421
622143140211
73366215005
oct1045360257
9331028787
10144040111
1174341516
12402a4667
1323ac3247
14151b6a75
15c9a3841
hex895e0af

144040111 has 4 divisors (see below), whose sum is σ = 144160072. Its totient is φ = 143920152.

The previous prime is 144040073. The next prime is 144040163. The reversal of 144040111 is 111040441.

144040111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144040111 - 27 = 144039983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144043111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58161 + ... + 60586.

It is an arithmetic number, because the mean of its divisors is an integer number (36040018).

Almost surely, 2144040111 is an apocalyptic number.

144040111 is a deficient number, since it is larger than the sum of its proper divisors (119961).

144040111 is a wasteful number, since it uses less digits than its factorization.

144040111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119960.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 144040111 is about 12001.6711752989. The cubic root of 144040111 is about 524.1969412488.

Adding to 144040111 its reverse (111040441), we get a palindrome (255080552).

The spelling of 144040111 in words is "one hundred forty-four million, forty thousand, one hundred eleven".

Divisors: 1 1213 118747 144040111