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13225764 = 2231102147
BaseRepresentation
bin110010011100…
…111100100100
3220212221100010
4302130330210
511341211024
61151250220
7220263036
oct62347444
926787303
1013225764
117513792
124519970
132980bc6
141a83c56
151263b29
hexc9cf24

13225764 has 12 divisors (see below), whose sum is σ = 30860144. Its totient is φ = 4408584.

The previous prime is 13225763. The next prime is 13225781. The reversal of 13225764 is 46752231.

13225764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (13225763) 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, 551062 + ... + 551085.

Almost surely, 213225764 is an apocalyptic number.

It is an amenable number.

13225764 is an abundant number, since it is smaller than the sum of its proper divisors (17634380).

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

13225764 is a wasteful number, since it uses less digits than its factorization.

13225764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102154 (or 1102152 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 13225764 is about 3636.7243502911. The cubic root of 13225764 is about 236.4868099446.

Adding to 13225764 its reverse (46752231), we get a palindrome (59977995).

The spelling of 13225764 in words is "thirteen million, two hundred twenty-five thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 12 1102147 2204294 3306441 4408588 6612882 13225764