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13214724 = 22310910103
BaseRepresentation
bin110010011010…
…010000000100
3220212101012020
4302122100010
511340332344
61151123140
7220215615
oct62322004
926771166
1013214724
117506466
1245134b0
132978b83
141a7dc0c
151260719
hexc9a404

13214724 has 24 divisors (see below), whose sum is σ = 31120320. Its totient is φ = 4364064.

The previous prime is 13214723. The next prime is 13214737. The reversal of 13214724 is 42741231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13214694 and 13214703.

It is not an unprimeable number, because it can be changed into a prime (13214723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3744 + ... + 6359.

It is an arithmetic number, because the mean of its divisors is an integer number (1296680).

Almost surely, 213214724 is an apocalyptic number.

It is an amenable number.

13214724 is an abundant number, since it is smaller than the sum of its proper divisors (17905596).

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

13214724 is a wasteful number, since it uses less digits than its factorization.

13214724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10219 (or 10217 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 13214724 is about 3635.2061839736. The cubic root of 13214724 is about 236.4209904031.

Adding to 13214724 its reverse (42741231), we get a palindrome (55955955).

The spelling of 13214724 in words is "thirteen million, two hundred fourteen thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 12 109 218 327 436 654 1308 10103 20206 30309 40412 60618 121236 1101227 2202454 3303681 4404908 6607362 13214724