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164675023 = 409140253
BaseRepresentation
bin10011101000010…
…11110111001111
3102110212100122221
421310023313033
5314124100043
624201320211
74036500052
oct1164136717
9373770587
10164675023
1184a55867
1247196067
1328169656
1417c28a99
15e6cc8ed
hex9d0bdcf

164675023 has 4 divisors (see below), whose sum is σ = 164719368. Its totient is φ = 164630680.

The previous prime is 164675011. The next prime is 164675041. The reversal of 164675023 is 320576461.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-164675023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164675023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164675003) 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, 16036 + ... + 24217.

It is an arithmetic number, because the mean of its divisors is an integer number (41179842).

Almost surely, 2164675023 is an apocalyptic number.

164675023 is a deficient number, since it is larger than the sum of its proper divisors (44345).

164675023 is an equidigital number, since it uses as much as digits as its factorization.

164675023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44344.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 164675023 is about 12832.5766313706. The cubic root of 164675023 is about 548.1203305030.

The spelling of 164675023 in words is "one hundred sixty-four million, six hundred seventy-five thousand, twenty-three".

Divisors: 1 4091 40253 164675023