Search a number
-
+
13115406 = 232185901
BaseRepresentation
bin110010000010…
…000000001110
3220200022221210
4302002000032
511324143111
61145035250
7216323223
oct62020016
926608853
1013115406
117448887
124485b26
1329428c5
141a5594a
1512410a6
hexc8200e

13115406 has 8 divisors (see below), whose sum is σ = 26230824. Its totient is φ = 4371800.

The previous prime is 13115371. The next prime is 13115423. The reversal of 13115406 is 60451131.

It is a sphenic number, since it is the product of 3 distinct primes.

13115406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1092945 + ... + 1092956.

It is an arithmetic number, because the mean of its divisors is an integer number (3278853).

Almost surely, 213115406 is an apocalyptic number.

13115406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115406 is a wasteful number, since it uses less digits than its factorization.

13115406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185906.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 13115406 is about 3621.5198466942. The cubic root of 13115406 is about 235.8272100141.

Adding to 13115406 its reverse (60451131), we get a palindrome (73566537).

The spelling of 13115406 in words is "thirteen million, one hundred fifteen thousand, four hundred six".

Divisors: 1 2 3 6 2185901 4371802 6557703 13115406