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207425 = 528297
BaseRepresentation
bin110010101001000001
3101112112102
4302221001
523114200
64240145
71522511
oct625101
9345472
10207425
11131929
12a0055
137354a
1455841
15416d5
hex32a41

207425 has 6 divisors (see below), whose sum is σ = 257238. Its totient is φ = 165920.

The previous prime is 207409. The next prime is 207433. The reversal of 207425 is 524702.

It can be written as a sum of positive squares in 3 ways, for example, as 66049 + 141376 = 257^2 + 376^2 .

It is not a de Polignac number, because 207425 - 24 = 207409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 207397 and 207406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4124 + ... + 4173.

It is an arithmetic number, because the mean of its divisors is an integer number (42873).

2207425 is an apocalyptic number.

207425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

207425 is a deficient number, since it is larger than the sum of its proper divisors (49813).

207425 is an equidigital number, since it uses as much as digits as its factorization.

207425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8307 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 207425 is about 455.4393483220. The cubic root of 207425 is about 59.1952736974.

The spelling of 207425 in words is "two hundred seven thousand, four hundred twenty-five".

Divisors: 1 5 25 8297 41485 207425