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164975057 = 1312690389
BaseRepresentation
bin10011101010101…
…01000111010001
3102111102121020022
421311111013101
5314213200212
624211553225
74042156562
oct1165250721
9374377208
10164975057
1185140225
12472bb815
13282430a0
1417ca6169
15e73b772
hex9d551d1

164975057 has 4 divisors (see below), whose sum is σ = 177665460. Its totient is φ = 152284656.

The previous prime is 164975051. The next prime is 164975059. The reversal of 164975057 is 750579461.

164975057 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, and also an emirpimes, since its reverse is a distinct semiprime: 750579461 = 1744151733.

It can be written as a sum of positive squares in 2 ways, for example, as 7623121 + 157351936 = 2761^2 + 12544^2 .

It is a cyclic number.

It is not a de Polignac number, because 164975057 - 26 = 164974993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164974999 and 164975017.

It is not an unprimeable number, because it can be changed into a prime (164975051) 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, 6345182 + ... + 6345207.

It is an arithmetic number, because the mean of its divisors is an integer number (44416365).

Almost surely, 2164975057 is an apocalyptic number.

It is an amenable number.

164975057 is a deficient number, since it is larger than the sum of its proper divisors (12690403).

164975057 is a wasteful number, since it uses less digits than its factorization.

164975057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12690402.

The product of its (nonzero) digits is 264600, while the sum is 44.

The square root of 164975057 is about 12844.2616370113. The cubic root of 164975057 is about 548.4530159657.

The spelling of 164975057 in words is "one hundred sixty-four million, nine hundred seventy-five thousand, fifty-seven".

Divisors: 1 13 12690389 164975057