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13049077 = 53246209
BaseRepresentation
bin110001110001…
…110011110101
3220112221222011
4301301303311
511320032302
61143404221
7215625646
oct61616365
926487864
1013049077
117402a68
124453671
13291b662
141a396cd
15122b5d7
hexc71cf5

13049077 has 4 divisors (see below), whose sum is σ = 13295340. Its totient is φ = 12802816.

The previous prime is 13049053. The next prime is 13049093. The reversal of 13049077 is 77094031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5574321 + 7474756 = 2361^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 13049077 - 27 = 13048949 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13049017) 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, 123052 + ... + 123157.

It is an arithmetic number, because the mean of its divisors is an integer number (3323835).

Almost surely, 213049077 is an apocalyptic number.

It is an amenable number.

13049077 is a deficient number, since it is larger than the sum of its proper divisors (246263).

13049077 is an equidigital number, since it uses as much as digits as its factorization.

13049077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246262.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13049077 is about 3612.3506197489. The cubic root of 13049077 is about 235.4289855494.

The spelling of 13049077 in words is "thirteen million, forty-nine thousand, seventy-seven".

Divisors: 1 53 246209 13049077