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23168413 = 33768749
BaseRepresentation
bin101100001100…
…0010110011101
31121121002002101
41120120112131
521412342123
62144325101
7400633252
oct130302635
947532071
1023168413
1112094854
127913791
134a52628
143111429
152079aad
hex161859d

23168413 has 4 divisors (see below), whose sum is σ = 23237500. Its totient is φ = 23099328.

The previous prime is 23168363. The next prime is 23168417. The reversal of 23168413 is 31486132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 19377604 = 1947^2 + 4402^2 .

It is not a de Polignac number, because 23168413 - 29 = 23167901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23168417) 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, 34038 + ... + 34711.

It is an arithmetic number, because the mean of its divisors is an integer number (5809375).

Almost surely, 223168413 is an apocalyptic number.

It is an amenable number.

23168413 is a deficient number, since it is larger than the sum of its proper divisors (69087).

23168413 is an equidigital number, since it uses as much as digits as its factorization.

23168413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69086.

The product of its digits is 3456, while the sum is 28.

The square root of 23168413 is about 4813.3577677127. The cubic root of 23168413 is about 285.0791326378.

It can be divided in two parts, 231 and 68413, that added together give a square (68644 = 2622).

The spelling of 23168413 in words is "twenty-three million, one hundred sixty-eight thousand, four hundred thirteen".

Divisors: 1 337 68749 23168413