Search a number
-
+
2866 = 21433
BaseRepresentation
bin101100110010
310221011
4230302
542431
621134
711233
oct5462
93834
102866
112176
1217aa
1313c6
14108a
15cb1
hexb32

2866 has 4 divisors (see below), whose sum is σ = 4302. Its totient is φ = 1432.

The previous prime is 2861. The next prime is 2879. The reversal of 2866 is 6682.

2866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 2025 + 841 = 45^2 + 29^2 .

2866 is a modest number, since divided by 66 gives 28 as remainder.

It is a plaindrome in base 7 and base 12.

It is a nialpdrome in base 15 and base 16.

It is not an unprimeable number, because it can be changed into a prime (2861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715 + ... + 718.

22866 is an apocalyptic number.

2866 is a deficient number, since it is larger than the sum of its proper divisors (1436).

2866 is a wasteful number, since it uses less digits than its factorization.

2866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its digits is 576, while the sum is 22.

The square root of 2866 is about 53.5350352573. The cubic root of 2866 is about 14.2044818227.

It can be divided in two parts, 286 and 6, that added together give a palindrome (292).

The spelling of 2866 in words is "two thousand, eight hundred sixty-six".

Divisors: 1 2 1433 2866