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12225713 = 107114259
BaseRepresentation
bin101110101000…
…110010110001
3212000010112012
4232220302301
511112210323
61114012305
7205626323
oct56506261
925003465
1012225713
1169a03a5
124117095
1326c0966
1418a3613
151117678
hexba8cb1

12225713 has 4 divisors (see below), whose sum is σ = 12340080. Its totient is φ = 12111348.

The previous prime is 12225709. The next prime is 12225727. The reversal of 12225713 is 31752221.

It is a happy number.

12225713 is digitally balanced in base 2, because in such base 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, and also an emirpimes, since its reverse is a distinct semiprime: 31752221 = 100931469.

It is a cyclic number.

It is not a de Polignac number, because 12225713 - 22 = 12225709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12225613) 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, 57023 + ... + 57236.

It is an arithmetic number, because the mean of its divisors is an integer number (3085020).

Almost surely, 212225713 is an apocalyptic number.

It is an amenable number.

12225713 is a deficient number, since it is larger than the sum of its proper divisors (114367).

12225713 is a wasteful number, since it uses less digits than its factorization.

12225713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114366.

The product of its digits is 840, while the sum is 23.

The square root of 12225713 is about 3496.5287071609. The cubic root of 12225713 is about 230.3693686873.

Adding to 12225713 its reverse (31752221), we get a palindrome (43977934).

The spelling of 12225713 in words is "twelve million, two hundred twenty-five thousand, seven hundred thirteen".

Divisors: 1 107 114259 12225713