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7229525 = 52289181
BaseRepresentation
bin11011100101000001010101
3111121022001012
4123211001111
53322321100
6414542005
7115310222
oct33450125
914538035
107229525
114098716
122507905
131661834
14d62949
1597c135
hex6e5055

7229525 has 6 divisors (see below), whose sum is σ = 8964642. Its totient is φ = 5783600.

The previous prime is 7229513. The next prime is 7229531. The reversal of 7229525 is 5259227.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1503076 + 5726449 = 1226^2 + 2393^2 .

It is not a de Polignac number, because 7229525 - 212 = 7225429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7229491 and 7229500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144566 + ... + 144615.

It is an arithmetic number, because the mean of its divisors is an integer number (1494107).

Almost surely, 27229525 is an apocalyptic number.

It is an amenable number.

7229525 is a deficient number, since it is larger than the sum of its proper divisors (1735117).

7229525 is a wasteful number, since it uses less digits than its factorization.

7229525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289191 (or 289186 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 7229525 is about 2688.7776032986. Note that the first 3 decimals coincide. The cubic root of 7229525 is about 193.3614620851.

The spelling of 7229525 in words is "seven million, two hundred twenty-nine thousand, five hundred twenty-five".

Divisors: 1 5 25 289181 1445905 7229525