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28682074 = 221167967
BaseRepresentation
bin110110101101…
…0011101011010
31222222012102001
41231122131122
524320311244
62502431214
7465536131
oct155323532
958865361
1028682074
11152102a3
12973250a
135c33155
143b48918
1527b85d4
hex1b5a75a

28682074 has 8 divisors (see below), whose sum is σ = 43227648. Its totient is φ = 14272860.

The previous prime is 28682051. The next prime is 28682107. The reversal of 28682074 is 47028682.

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

It is a super-2 number, since 2×286820742 = 1645322737882952, which contains 22 as substring.

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, 33562 + ... + 34405.

It is an arithmetic number, because the mean of its divisors is an integer number (5403456).

Almost surely, 228682074 is an apocalyptic number.

28682074 is a deficient number, since it is larger than the sum of its proper divisors (14545574).

28682074 is a wasteful number, since it uses less digits than its factorization.

28682074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68180.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 28682074 is about 5355.5647694711. The cubic root of 28682074 is about 306.1048311562.

The spelling of 28682074 in words is "twenty-eight million, six hundred eighty-two thousand, seventy-four".

Divisors: 1 2 211 422 67967 135934 14341037 28682074