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13104023 = 47278809
BaseRepresentation
bin110001111111…
…001110010111
3220122202100012
4301333032113
511323312043
61144510435
7216245102
oct61771627
926582305
1013104023
117440279
12447b41b
13293a67a
141a51739
15123ca18
hexc7f397

13104023 has 4 divisors (see below), whose sum is σ = 13382880. Its totient is φ = 12825168.

The previous prime is 13104019. The next prime is 13104037. The reversal of 13104023 is 32040131.

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

It is a cyclic number.

It is not a de Polignac number, because 13104023 - 22 = 13104019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13103989 and 13104007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13104073) 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, 139358 + ... + 139451.

It is an arithmetic number, because the mean of its divisors is an integer number (3345720).

Almost surely, 213104023 is an apocalyptic number.

13104023 is a deficient number, since it is larger than the sum of its proper divisors (278857).

13104023 is an equidigital number, since it uses as much as digits as its factorization.

13104023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278856.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13104023 is about 3619.9479278023. The cubic root of 13104023 is about 235.7589646209.

Adding to 13104023 its reverse (32040131), we get a palindrome (45144154).

The spelling of 13104023 in words is "thirteen million, one hundred four thousand, twenty-three".

Divisors: 1 47 278809 13104023