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268865 = 553773
BaseRepresentation
bin1000001101001000001
3111122210222
41001221001
532100430
65432425
72166602
oct1015101
9448728
10268865
11174003
1210b715
13954bc
146dda9
15549e5
hex41a41

268865 has 4 divisors (see below), whose sum is σ = 322644. Its totient is φ = 215088.

The previous prime is 268861. The next prime is 268883. The reversal of 268865 is 568862.

268865 is nontrivially palindromic in base 4 and base 8.

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 142129 + 126736 = 377^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 268865 - 22 = 268861 is a prime.

It is a d-powerful number, because it can be written as 218 + 64 + 8 + 84 + 64 + 52 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26882 + ... + 26891.

It is an arithmetic number, because the mean of its divisors is an integer number (80661).

2268865 is an apocalyptic number.

It is an amenable number.

268865 is a deficient number, since it is larger than the sum of its proper divisors (53779).

268865 is an equidigital number, since it uses as much as digits as its factorization.

268865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53778.

The product of its digits is 23040, while the sum is 35.

The square root of 268865 is about 518.5219378194. The cubic root of 268865 is about 64.5423474486.

The spelling of 268865 in words is "two hundred sixty-eight thousand, eight hundred sixty-five".

Divisors: 1 5 53773 268865