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164712023 = 7108721647
BaseRepresentation
bin10011101000101…
…00111001010111
3102110221020102022
421310110321113
5314131241043
624202203355
74040012660
oct1164247127
9373836368
10164712023
1184a80643
12471b355b
1328180448
1417c38367
15e6d8868
hex9d14e57

164712023 has 8 divisors (see below), whose sum is σ = 188424192. Its totient is φ = 141045336.

The previous prime is 164712019. The next prime is 164712029. The reversal of 164712023 is 320217461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164712023 - 22 = 164712019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164711983 and 164712001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164712029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3215 + ... + 18432.

It is an arithmetic number, because the mean of its divisors is an integer number (23553024).

Almost surely, 2164712023 is an apocalyptic number.

164712023 is a deficient number, since it is larger than the sum of its proper divisors (23712169).

164712023 is a wasteful number, since it uses less digits than its factorization.

164712023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22741.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 164712023 is about 12834.0181938472. The cubic root of 164712023 is about 548.1613788926.

Adding to 164712023 its reverse (320217461), we get a palindrome (484929484).

The spelling of 164712023 in words is "one hundred sixty-four million, seven hundred twelve thousand, twenty-three".

Divisors: 1 7 1087 7609 21647 151529 23530289 164712023