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231325 = 5219487
BaseRepresentation
bin111000011110011101
3102202022121
4320132131
524400300
64542541
71652263
oct703635
9382277
10231325
11148886
12b1a51
13813a3
1460433
154881a
hex3879d

231325 has 12 divisors (see below), whose sum is σ = 302560. Its totient is φ = 174960.

The previous prime is 231323. The next prime is 231331. The reversal of 231325 is 523132.

231325 = T38 + T39 + ... + T112.

It is not a de Polignac number, because 231325 - 21 = 231323 is a prime.

It is a super-2 number, since 2×2313252 = 107022511250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231299 and 231308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 232 + ... + 718.

2231325 is an apocalyptic number.

231325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231325 is a deficient number, since it is larger than the sum of its proper divisors (71235).

231325 is a wasteful number, since it uses less digits than its factorization.

231325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 511 counting only the distinct ones).

The product of its digits is 180, while the sum is 16.

The square root of 231325 is about 480.9625765067. The cubic root of 231325 is about 61.3866862736.

Adding to 231325 its reverse (523132), we get a palindrome (754457).

The spelling of 231325 in words is "two hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 5 19 25 95 475 487 2435 9253 12175 46265 231325