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233538625 = 531868309
BaseRepresentation
bin11011110101110…
…00010001000001
3121021102222202201
431322320101001
5434241214000
635101313201
75534021425
oct1572702101
9537388681
10233538625
1110a910031
1266265801
13394cab48
1423032b85
151578196a
hexdeb8441

233538625 has 8 divisors (see below), whose sum is σ = 291456360. Its totient is φ = 186830800.

The previous prime is 233538623. The next prime is 233538647. The reversal of 233538625 is 526835332.

It can be written as a sum of positive squares in 4 ways, for example, as 12837889 + 220700736 = 3583^2 + 14856^2 .

It is not a de Polignac number, because 233538625 - 21 = 233538623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (233538623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934030 + ... + 934279.

It is an arithmetic number, because the mean of its divisors is an integer number (36432045).

Almost surely, 2233538625 is an apocalyptic number.

233538625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233538625 is a deficient number, since it is larger than the sum of its proper divisors (57917735).

233538625 is an equidigital number, since it uses as much as digits as its factorization.

233538625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868324 (or 1868314 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 233538625 is about 15281.9705862824. The cubic root of 233538625 is about 615.8187477993.

The spelling of 233538625 in words is "two hundred thirty-three million, five hundred thirty-eight thousand, six hundred twenty-five".

Divisors: 1 5 25 125 1868309 9341545 46707725 233538625