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152720164 = 223721672
BaseRepresentation
bin10010001101001…
…01001100100100
3101122100222200101
421012211030210
5303044021124
623053153444
73533046202
oct1106451444
9348328611
10152720164
117922aa13
124318b884
132584207c
14163d6072
15d61a644
hex91a5324

152720164 has 27 divisors (see below), whose sum is σ = 276333393. Its totient is φ = 73851408.

The previous prime is 152720131. The next prime is 152720171. The reversal of 152720164 is 461027251.

The square root of 152720164 is 12358.

It is a perfect power (a square), and thus also a powerful number.

152720164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 136656100 + 16064064 = 11690^2 + 4008^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 914409 + ... + 914575.

Almost surely, 2152720164 is an apocalyptic number.

152720164 is the 12358-th square number.

It is an amenable number.

152720164 is a deficient number, since it is larger than the sum of its proper divisors (123613229).

152720164 is an equidigital number, since it uses as much as digits as its factorization.

152720164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The cubic root of 152720164 is about 534.5218472158.

The spelling of 152720164 in words is "one hundred fifty-two million, seven hundred twenty thousand, one hundred sixty-four".

Divisors: 1 2 4 37 74 148 167 334 668 1369 2738 5476 6179 12358 24716 27889 55778 111556 228623 457246 914492 1031893 2063786 4127572 38180041 76360082 152720164