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164612125 = 536312087
BaseRepresentation
bin10011100111111…
…00100000011101
3102110202011101101
421303330200131
5314120042000
624200113101
74036115506
oct1163744035
9373664341
10164612125
1184a12587
1247165791
1328146b32
1417c0dbad
15e6b8e6a
hex9cfc81d

164612125 has 16 divisors (see below), whose sum is σ = 205860096. Its totient is φ = 131418000.

The previous prime is 164612113. The next prime is 164612141. The reversal of 164612125 is 521216461.

It is not a de Polignac number, because 164612125 - 221 = 162514973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164612093 and 164612102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77832 + ... + 79918.

It is an arithmetic number, because the mean of its divisors is an integer number (12866256).

Almost surely, 2164612125 is an apocalyptic number.

It is an amenable number.

164612125 is a deficient number, since it is larger than the sum of its proper divisors (41247971).

164612125 is an equidigital number, since it uses as much as digits as its factorization.

164612125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2723 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 164612125 is about 12830.1256813797. The cubic root of 164612125 is about 548.0505363467.

Adding to 164612125 its reverse (521216461), we get a palindrome (685828586).

The spelling of 164612125 in words is "one hundred sixty-four million, six hundred twelve thousand, one hundred twenty-five".

Divisors: 1 5 25 125 631 2087 3155 10435 15775 52175 78875 260875 1316897 6584485 32922425 164612125