Search a number
-
+
28666682 = 2111303031
BaseRepresentation
bin110110101011…
…0101100111010
31222221102021222
41231112230322
524314313212
62502232042
7465443222
oct155265472
958842258
1028666682
11151aa780
129725622
135c29145
143b43082
1527b3c72
hex1b56b3a

28666682 has 8 divisors (see below), whose sum is σ = 46909152. Its totient is φ = 13030300.

The previous prime is 28666643. The next prime is 28666721.

It is a happy number.

28666682 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (28666643) and next prime (28666721).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651494 + ... + 651537.

It is an arithmetic number, because the mean of its divisors is an integer number (5863644).

Almost surely, 228666682 is an apocalyptic number.

28666682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28666682 is a deficient number, since it is larger than the sum of its proper divisors (18242470).

28666682 is a wasteful number, since it uses less digits than its factorization.

28666682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303044.

The product of its digits is 331776, while the sum is 44.

The square root of 28666682 is about 5354.1275666536. The cubic root of 28666682 is about 306.0500651419.

The spelling of 28666682 in words is "twenty-eight million, six hundred sixty-six thousand, six hundred eighty-two".

Divisors: 1 2 11 22 1303031 2606062 14333341 28666682