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260525 = 5217613
BaseRepresentation
bin111111100110101101
3111020101002
4333212231
531314100
65330045
72133356
oct774655
9436332
10260525
11168811
12106925
1391775
146ad2d
15522d5
hex3f9ad

260525 has 12 divisors (see below), whose sum is σ = 342612. Its totient is φ = 195840.

The previous prime is 260489. The next prime is 260527. The reversal of 260525 is 525062.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 32041 + 228484 = 179^2 + 478^2 .

It is not a de Polignac number, because 260525 - 26 = 260461 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 = 260497 and 260506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119 + ... + 731.

It is an arithmetic number, because the mean of its divisors is an integer number (28551).

2260525 is an apocalyptic number.

260525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

260525 is a deficient number, since it is larger than the sum of its proper divisors (82087).

260525 is a wasteful number, since it uses less digits than its factorization.

260525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 260525 is about 510.4164965986. The cubic root of 260525 is about 63.8679732697.

Adding to 260525 its reverse (525062), we get a palindrome (785587).

The spelling of 260525 in words is "two hundred sixty thousand, five hundred twenty-five".

Divisors: 1 5 17 25 85 425 613 3065 10421 15325 52105 260525