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230563525 = 5240922549
BaseRepresentation
bin11011011111000…
…01111011000101
3121001211211200211
431233201323011
5433011013100
634513435421
75466520603
oct1557417305
9531754624
10230563525
11109168875
126526bb71
13389c892a
142289a873
15153951ba
hexdbe1ec5

230563525 has 12 divisors (see below), whose sum is σ = 286610500. Its totient is φ = 183991680.

The previous prime is 230563511. The next prime is 230563559. The reversal of 230563525 is 525365032.

It can be written as a sum of positive squares in 6 ways, for example, as 43256929 + 187306596 = 6577^2 + 13686^2 .

It is not a de Polignac number, because 230563525 - 217 = 230432453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1050 + ... + 21499.

Almost surely, 2230563525 is an apocalyptic number.

230563525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230563525 is a deficient number, since it is larger than the sum of its proper divisors (56046975).

230563525 is a wasteful number, since it uses less digits than its factorization.

230563525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22968 (or 22963 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 230563525 is about 15184.3183910243. The cubic root of 230563525 is about 613.1925472059.

The spelling of 230563525 in words is "two hundred thirty million, five hundred sixty-three thousand, five hundred twenty-five".

Divisors: 1 5 25 409 2045 10225 22549 112745 563725 9222541 46112705 230563525