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13082761 = 34993739
BaseRepresentation
bin110001111010…
…000010001001
3220121200011201
4301322002021
511322122021
61144224201
7216126106
oct61720211
926550151
1013082761
1174262aa
12446b061
132930aa3
141a47aad
151236591
hexc7a089

13082761 has 4 divisors (see below), whose sum is σ = 13090000. Its totient is φ = 13075524.

The previous prime is 13082753. The next prime is 13082767. The reversal of 13082761 is 16728031.

13082761 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16728031 = 56929399.

It is a cyclic number.

It is not a de Polignac number, because 13082761 - 23 = 13082753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13082767) 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, 1630 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (3272500).

Almost surely, 213082761 is an apocalyptic number.

It is an amenable number.

13082761 is a deficient number, since it is larger than the sum of its proper divisors (7239).

13082761 is an equidigital number, since it uses as much as digits as its factorization.

13082761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7238.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 13082761 is about 3617.0099529860. The cubic root of 13082761 is about 235.6313849536.

The spelling of 13082761 in words is "thirteen million, eighty-two thousand, seven hundred sixty-one".

Divisors: 1 3499 3739 13082761