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13026887 = 29449203
BaseRepresentation
bin110001101100…
…011001000111
3220111211112022
4301230121013
511313330022
61143113355
7215504156
oct61543107
926454468
1013026887
117398325
12444285b
132911523
141a3159d
151224c42
hexc6c647

13026887 has 4 divisors (see below), whose sum is σ = 13476120. Its totient is φ = 12577656.

The previous prime is 13026883. The next prime is 13026911. The reversal of 13026887 is 78862031.

13026887 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 13026887 - 22 = 13026883 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 (13026883) 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, 224573 + ... + 224630.

It is an arithmetic number, because the mean of its divisors is an integer number (3369030).

Almost surely, 213026887 is an apocalyptic number.

13026887 is a deficient number, since it is larger than the sum of its proper divisors (449233).

13026887 is an equidigital number, since it uses as much as digits as its factorization.

13026887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449232.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 13026887 is about 3609.2779056205. The cubic root of 13026887 is about 235.2954605695.

The spelling of 13026887 in words is "thirteen million, twenty-six thousand, eight hundred eighty-seven".

Divisors: 1 29 449203 13026887