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13506323 = 127106349
BaseRepresentation
bin110011100001…
…011100010011
3221102012012012
4303201130103
511424200243
61201253135
7222542015
oct63413423
927365165
1013506323
117695556
1246341ab
132a4b80c
141b181b5
1512bbd18
hexce1713

13506323 has 4 divisors (see below), whose sum is σ = 13612800. Its totient is φ = 13399848.

The previous prime is 13506319. The next prime is 13506331. The reversal of 13506323 is 32360531.

13506323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13506323 - 22 = 13506319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13506523) 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, 53048 + ... + 53301.

It is an arithmetic number, because the mean of its divisors is an integer number (3403200).

Almost surely, 213506323 is an apocalyptic number.

13506323 is a deficient number, since it is larger than the sum of its proper divisors (106477).

13506323 is a wasteful number, since it uses less digits than its factorization.

13506323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106476.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 13506323 is about 3675.0949647594. The cubic root of 13506323 is about 238.1473265738.

Adding to 13506323 its reverse (32360531), we get a palindrome (45866854).

The spelling of 13506323 in words is "thirteen million, five hundred six thousand, three hundred twenty-three".

Divisors: 1 127 106349 13506323