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13075997 = 111188727
BaseRepresentation
bin110001111000…
…011000011101
3220121022220012
4301320120131
511321412442
61144133005
7216100304
oct61703035
926538805
1013075997
117421210
124467165
13292a99c
141a4543b
151234582
hexc7861d

13075997 has 4 divisors (see below), whose sum is σ = 14264736. Its totient is φ = 11887260.

The previous prime is 13075991. The next prime is 13076033. The reversal of 13075997 is 79957031.

13075997 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13075997 - 24 = 13075981 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 (13075991) 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, 594353 + ... + 594374.

It is an arithmetic number, because the mean of its divisors is an integer number (3566184).

Almost surely, 213075997 is an apocalyptic number.

It is an amenable number.

13075997 is a deficient number, since it is larger than the sum of its proper divisors (1188739).

13075997 is a wasteful number, since it uses less digits than its factorization.

13075997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188738.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 13075997 is about 3616.0748056422. The cubic root of 13075997 is about 235.5907695351.

The spelling of 13075997 in words is "thirteen million, seventy-five thousand, nine hundred ninety-seven".

Divisors: 1 11 1188727 13075997