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225473524 = 22312118061
BaseRepresentation
bin11010111000001…
…11001111110100
3120201021020112021
431130013033310
5430210123044
634212402524
75405331133
oct1534071764
9521236467
10225473524
11106301661
1263616444
1337935bb3
1421d3391a
1514bdbe84
hexd7073f4

225473524 has 12 divisors (see below), whose sum is σ = 394726948. Its totient is φ = 112694400.

The previous prime is 225473483. The next prime is 225473527. The reversal of 225473524 is 425374522.

225473524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 66259600 + 159213924 = 8140^2 + 12618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225473524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225473527) 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, 3454 + ... + 21514.

Almost surely, 2225473524 is an apocalyptic number.

It is an amenable number.

225473524 is a deficient number, since it is larger than the sum of its proper divisors (169253424).

225473524 is a wasteful number, since it uses less digits than its factorization.

225473524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186 (or 21184 counting only the distinct ones).

The product of its digits is 67200, while the sum is 34.

The square root of 225473524 is about 15015.7758374318. The cubic root of 225473524 is about 608.6465774180.

The spelling of 225473524 in words is "two hundred twenty-five million, four hundred seventy-three thousand, five hundred twenty-four".

Divisors: 1 2 4 3121 6242 12484 18061 36122 72244 56368381 112736762 225473524