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260801 = 416361
BaseRepresentation
bin111111101011000001
3111020202022
4333223001
531321201
65331225
72134232
oct775301
9436668
10260801
11168a42
12106b15
1391928
146b089
155241b
hex3fac1

260801 has 4 divisors (see below), whose sum is σ = 267204. Its totient is φ = 254400.

The previous prime is 260791. The next prime is 260807. The reversal of 260801 is 108062.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34225 + 226576 = 185^2 + 476^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-260801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 260801.

It is not an unprimeable number, because it can be changed into a prime (260807) 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 3 ways as a sum of consecutive naturals, for example, 3140 + ... + 3221.

It is an arithmetic number, because the mean of its divisors is an integer number (66801).

2260801 is an apocalyptic number.

It is an amenable number.

260801 is a deficient number, since it is larger than the sum of its proper divisors (6403).

260801 is an equidigital number, since it uses as much as digits as its factorization.

260801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 260801 is about 510.6867924668. The cubic root of 260801 is about 63.8905192051.

Adding to 260801 its reverse (108062), we get a palindrome (368863).

The spelling of 260801 in words is "two hundred sixty thousand, eight hundred one".

Divisors: 1 41 6361 260801