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234005225 = 529796497
BaseRepresentation
bin11011111001010…
…10001011101001
3121022022200211012
431330222023221
5434401131400
635115313305
75541003656
oct1574521351
9538280735
10234005225
111100a9653
126644b835
133963233c
1423114c2d
1515824d35
hexdf2a2e9

234005225 has 12 divisors (see below), whose sum is σ = 293160924. Its totient is φ = 185272320.

The previous prime is 234005207. The next prime is 234005227. The reversal of 234005225 is 522500432.

It can be written as a sum of positive squares in 6 ways, for example, as 45657049 + 188348176 = 6757^2 + 13724^2 .

It is not a de Polignac number, because 234005225 - 212 = 234001129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234005225.

It is not an unprimeable number, because it can be changed into a prime (234005227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45824 + ... + 50673.

It is an arithmetic number, because the mean of its divisors is an integer number (24430077).

Almost surely, 2234005225 is an apocalyptic number.

234005225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

234005225 is a deficient number, since it is larger than the sum of its proper divisors (59155699).

234005225 is an equidigital number, since it uses as much as digits as its factorization.

234005225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96604 (or 96599 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 234005225 is about 15297.2293242927. The cubic root of 234005225 is about 616.2286013084.

Adding to 234005225 its reverse (522500432), we get a palindrome (756505657).

The spelling of 234005225 in words is "two hundred thirty-four million, five thousand, two hundred twenty-five".

Divisors: 1 5 25 97 485 2425 96497 482485 2412425 9360209 46801045 234005225