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144146164 = 22149324137
BaseRepresentation
bin10001001011101…
…11111011110100
3101001020101100211
420211313323310
5243400134124
622145315204
73400136131
oct1045677364
9331211324
10144146164
1174404168
1240335b04
1323b2c5b6
1415203588
15c9c4e94
hex8977ef4

144146164 has 12 divisors (see below), whose sum is σ = 252435204. Its totient is φ = 72021824.

The previous prime is 144146161. The next prime is 144146173. The reversal of 144146164 is 461641441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114661264 + 29484900 = 10708^2 + 5430^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144146161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6097 + ... + 18040.

It is an arithmetic number, because the mean of its divisors is an integer number (21036267).

Almost surely, 2144146164 is an apocalyptic number.

It is an amenable number.

144146164 is a deficient number, since it is larger than the sum of its proper divisors (108289040).

144146164 is a wasteful number, since it uses less digits than its factorization.

144146164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25634 (or 25632 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 144146164 is about 12006.0886220284. The cubic root of 144146164 is about 524.3255605609.

The spelling of 144146164 in words is "one hundred forty-four million, one hundred forty-six thousand, one hundred sixty-four".

Divisors: 1 2 4 1493 2986 5972 24137 48274 96548 36036541 72073082 144146164