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144275923 = 1121770139
BaseRepresentation
bin10001001100101…
…11100111010011
3101001110222100201
420212113213103
5243413312143
622152200031
73401216341
oct1046274723
9331428321
10144275923
1174492700
1240399017
1323b7668c
1415238991
15c9ed64d
hex89979d3

144275923 has 12 divisors (see below), whose sum is σ = 167915160. Its totient is φ = 123442880.

The previous prime is 144275921. The next prime is 144275951. The reversal of 144275923 is 329572441.

It is not a de Polignac number, because 144275923 - 21 = 144275921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144275921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33013 + ... + 37126.

It is an arithmetic number, because the mean of its divisors is an integer number (13992930).

Almost surely, 2144275923 is an apocalyptic number.

144275923 is a deficient number, since it is larger than the sum of its proper divisors (23639237).

144275923 is a wasteful number, since it uses less digits than its factorization.

144275923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70178 (or 70167 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 144275923 is about 12011.4912895943. The cubic root of 144275923 is about 524.4828443290.

The spelling of 144275923 in words is "one hundred forty-four million, two hundred seventy-five thousand, nine hundred twenty-three".

Divisors: 1 11 17 121 187 2057 70139 771529 1192363 8486819 13115993 144275923