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130534225 = 525221369
BaseRepresentation
bin1111100011111…
…00101101010001
3100002121211021221
413301330231101
5231404043400
620541445041
73143344153
oct761745521
9302554257
10130534225
1167757328
1237870781
13210749b3
141349cad3
15b6d6c1a
hex7c7cb51

130534225 has 6 divisors (see below), whose sum is σ = 161862470. Its totient is φ = 104427360.

The previous prime is 130534207. The next prime is 130534231. The reversal of 130534225 is 522435031.

It can be written as a sum of positive squares in 3 ways, for example, as 46335249 + 84198976 = 6807^2 + 9176^2 .

It is not a de Polignac number, because 130534225 - 215 = 130501457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5221369 = 130534225 / (1 + 3 + 0 + 5 + 3 + 4 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 130534225.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2610660 + ... + 2610709.

Almost surely, 2130534225 is an apocalyptic number.

It is an amenable number.

130534225 is a deficient number, since it is larger than the sum of its proper divisors (31328245).

130534225 is an equidigital number, since it uses as much as digits as its factorization.

130534225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5221379 (or 5221374 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 130534225 is about 11425.1575481479. The cubic root of 130534225 is about 507.2726703141.

Subtracting from 130534225 its product of nonzero digits (3600), we obtain a square (130530625 = 114252).

Adding to 130534225 its reverse (522435031), we get a palindrome (652969256).

The spelling of 130534225 in words is "one hundred thirty million, five hundred thirty-four thousand, two hundred twenty-five".

Divisors: 1 5 25 5221369 26106845 130534225