Search a number
-
+
13167897 = 34389299
BaseRepresentation
bin110010001110…
…110100011001
3220202222221220
4302032310121
511332333042
61150122253
7216632241
oct62166431
926688856
1013167897
117484266
1244b0389
132960772
141a6ab21
1512518ec
hexc8ed19

13167897 has 4 divisors (see below), whose sum is σ = 17557200. Its totient is φ = 8778596.

The previous prime is 13167883. The next prime is 13167899. The reversal of 13167897 is 79876131.

13167897 is digitally balanced in base 2 and base 4, because in such bases 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 a cyclic number.

It is not a de Polignac number, because 13167897 - 211 = 13165849 is a prime.

It is a super-2 number, since 2×131678972 = 346787022805218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13167899) 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, 2194647 + ... + 2194652.

It is an arithmetic number, because the mean of its divisors is an integer number (4389300).

Almost surely, 213167897 is an apocalyptic number.

It is an amenable number.

13167897 is a deficient number, since it is larger than the sum of its proper divisors (4389303).

13167897 is an equidigital number, since it uses as much as digits as its factorization.

13167897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389302.

The product of its digits is 63504, while the sum is 42.

The square root of 13167897 is about 3628.7597054641. The cubic root of 13167897 is about 236.1414035762.

It can be divided in two parts, 13 and 167897, that added together give a triangular number (167910 = T579).

The spelling of 13167897 in words is "thirteen million, one hundred sixty-seven thousand, eight hundred ninety-seven".

Divisors: 1 3 4389299 13167897