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164064023 = 227722749
BaseRepresentation
bin10011100011101…
…10101100010111
3102102201022112022
421301312230113
5314000022043
624140243355
74031343524
oct1161665427
9372638468
10164064023
1184678802
1246b4055b
1327cb4506
1417b0a14b
15e60b868
hex9c76b17

164064023 has 4 divisors (see below), whose sum is σ = 164787000. Its totient is φ = 163341048.

The previous prime is 164063989. The next prime is 164064041. The reversal of 164064023 is 320460461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320460461 = 2833113117.

It is a cyclic number.

It is not a de Polignac number, because 164064023 - 210 = 164062999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164063983 and 164064001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164004023) 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, 361148 + ... + 361601.

It is an arithmetic number, because the mean of its divisors is an integer number (41196750).

Almost surely, 2164064023 is an apocalyptic number.

164064023 is a deficient number, since it is larger than the sum of its proper divisors (722977).

164064023 is an equidigital number, since it uses as much as digits as its factorization.

164064023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722976.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 164064023 is about 12808.7479091440. The cubic root of 164064023 is about 547.4415864509.

The spelling of 164064023 in words is "one hundred sixty-four million, sixty-four thousand, twenty-three".

Divisors: 1 227 722749 164064023