Search a number
-
+
13124361 = 34374787
BaseRepresentation
bin110010000100…
…001100001001
3220200210020110
4302010030021
511324434421
61145144533
7216361305
oct62041411
926623213
1013124361
117454588
12448b149
1329469c3
141a58d05
151243a76
hexc84309

13124361 has 4 divisors (see below), whose sum is σ = 17499152. Its totient is φ = 8749572.

The previous prime is 13124347. The next prime is 13124389. The reversal of 13124361 is 16342131.

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 13124361 - 26 = 13124297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13124311) 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, 2187391 + ... + 2187396.

It is an arithmetic number, because the mean of its divisors is an integer number (4374788).

Almost surely, 213124361 is an apocalyptic number.

It is an amenable number.

13124361 is a deficient number, since it is larger than the sum of its proper divisors (4374791).

13124361 is an equidigital number, since it uses as much as digits as its factorization.

13124361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374790.

The product of its digits is 432, while the sum is 21.

The square root of 13124361 is about 3622.7559950954. The cubic root of 13124361 is about 235.8808708820.

Adding to 13124361 its reverse (16342131), we get a palindrome (29466492).

The spelling of 13124361 in words is "thirteen million, one hundred twenty-four thousand, three hundred sixty-one".

Divisors: 1 3 4374787 13124361