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248525 = 529941
BaseRepresentation
bin111100101011001101
3110121220122
4330223031
530423100
65154325
72053364
oct745315
9417818
10248525
1115a7a2
12bb9a5
1389174
14667db
154d985
hex3cacd

248525 has 6 divisors (see below), whose sum is σ = 308202. Its totient is φ = 198800.

The previous prime is 248509. The next prime is 248533. The reversal of 248525 is 525842.

It can be written as a sum of positive squares in 3 ways, for example, as 4489 + 244036 = 67^2 + 494^2 .

It is not a de Polignac number, because 248525 - 24 = 248509 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248494 and 248503.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4946 + ... + 4995.

It is an arithmetic number, because the mean of its divisors is an integer number (51367).

2248525 is an apocalyptic number.

248525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

248525 is a deficient number, since it is larger than the sum of its proper divisors (59677).

248525 is an equidigital number, since it uses as much as digits as its factorization.

248525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9951 (or 9946 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 248525 is about 498.5228179331. The cubic root of 248525 is about 62.8719158016.

The spelling of 248525 in words is "two hundred forty-eight thousand, five hundred twenty-five".

Divisors: 1 5 25 9941 49705 248525