Search a number
-
+
13247061 = 34415687
BaseRepresentation
bin110010100010…
…001001010101
3220221000112220
4302202021111
511342401221
61151532553
7220412112
oct62421125
926830486
1013247061
117528793
12452a159
13298a7c9
141a8b909
15126a0c6
hexca2255

13247061 has 4 divisors (see below), whose sum is σ = 17662752. Its totient is φ = 8831372.

The previous prime is 13247051. The next prime is 13247071. The reversal of 13247061 is 16074231.

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 an interprime number because it is at equal distance from previous prime (13247051) and next prime (13247071).

It is a cyclic number.

It is not a de Polignac number, because 13247061 - 29 = 13246549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247041) 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, 2207841 + ... + 2207846.

It is an arithmetic number, because the mean of its divisors is an integer number (4415688).

Almost surely, 213247061 is an apocalyptic number.

It is an amenable number.

13247061 is a deficient number, since it is larger than the sum of its proper divisors (4415691).

13247061 is an equidigital number, since it uses as much as digits as its factorization.

13247061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415690.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13247061 is about 3639.6512195539. The cubic root of 13247061 is about 236.6136774400.

It can be divided in two parts, 1324 and 7061, that added together give a triangular number (8385 = T129).

The spelling of 13247061 in words is "thirteen million, two hundred forty-seven thousand, sixty-one".

Divisors: 1 3 4415687 13247061