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13296487 = 15784691
BaseRepresentation
bin110010101110…
…001101100111
3221000112100111
4302232031213
511400441422
61152553451
7221006161
oct62561547
927015314
1013296487
117561936
124552887
1329a7159
141aa1931
151279a77
hexcae367

13296487 has 4 divisors (see below), whose sum is σ = 13381336. Its totient is φ = 13211640.

The previous prime is 13296473. The next prime is 13296509. The reversal of 13296487 is 78469231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78469231 = 493315907.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13296487 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 (13296407) 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, 42189 + ... + 42502.

It is an arithmetic number, because the mean of its divisors is an integer number (3345334).

Almost surely, 213296487 is an apocalyptic number.

13296487 is a deficient number, since it is larger than the sum of its proper divisors (84849).

13296487 is an equidigital number, since it uses as much as digits as its factorization.

13296487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84848.

The product of its digits is 72576, while the sum is 40.

The square root of 13296487 is about 3646.4348341908. The cubic root of 13296487 is about 236.9075879866.

The spelling of 13296487 in words is "thirteen million, two hundred ninety-six thousand, four hundred eighty-seven".

Divisors: 1 157 84691 13296487