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232513025 = 529300521
BaseRepresentation
bin11011101101111…
…01111000000001
3121012111212220112
431312331320001
5434010404100
635023321105
75522220353
oct1566757001
9535455815
10232513025
1110a27a528
1265a50195
133922c094
1422c470d3
151562cb35
hexddbde01

232513025 has 6 divisors (see below), whose sum is σ = 288316182. Its totient is φ = 186010400.

The previous prime is 232513019. The next prime is 232513031. The reversal of 232513025 is 520315232.

It is an interprime number because it is at equal distance from previous prime (232513019) and next prime (232513031).

It can be written as a sum of positive squares in 3 ways, for example, as 8202496 + 224310529 = 2864^2 + 14977^2 .

It is not a de Polignac number, because 232513025 - 28 = 232512769 is a prime.

It is a Duffinian 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, 4650236 + ... + 4650285.

It is an arithmetic number, because the mean of its divisors is an integer number (48052697).

Almost surely, 2232513025 is an apocalyptic number.

232513025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232513025 is a deficient number, since it is larger than the sum of its proper divisors (55803157).

232513025 is an equidigital number, since it uses as much as digits as its factorization.

232513025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300531 (or 9300526 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 232513025 is about 15248.3777825708. The cubic root of 232513025 is about 614.9159556424.

Adding to 232513025 its reverse (520315232), we get a palindrome (752828257).

The spelling of 232513025 in words is "two hundred thirty-two million, five hundred thirteen thousand, twenty-five".

Divisors: 1 5 25 9300521 46502605 232513025