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23896013 = 35816673
BaseRepresentation
bin101101100100…
…1111111001101
31122222001011112
41123021333031
522104133023
62212101405
7410053451
oct133117715
948861145
1023896013
1112541479
128004865
134c4886b
143260661
152170478
hex16c9fcd

23896013 has 4 divisors (see below), whose sum is σ = 23906268. Its totient is φ = 23885760.

The previous prime is 23896007. The next prime is 23896027. The reversal of 23896013 is 31069832.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10220809 + 13675204 = 3197^2 + 3698^2 .

It is a cyclic number.

It is not a de Polignac number, because 23896013 - 28 = 23895757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23896913) 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, 245 + ... + 6917.

It is an arithmetic number, because the mean of its divisors is an integer number (5976567).

Almost surely, 223896013 is an apocalyptic number.

It is an amenable number.

23896013 is a deficient number, since it is larger than the sum of its proper divisors (10255).

23896013 is an equidigital number, since it uses as much as digits as its factorization.

23896013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10254.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 23896013 is about 4888.3548357295. The cubic root of 23896013 is about 288.0327131372.

The spelling of 23896013 in words is "twenty-three million, eight hundred ninety-six thousand, thirteen".

Divisors: 1 3581 6673 23896013