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28676308 = 2223353883
BaseRepresentation
bin110110101100…
…1000011010100
31222221220111111
41231121003110
524320120213
62502344404
7465513253
oct155310324
958856444
1028676308
1115206a31
12972b104
135c3063b
143b4679a
1527b6a3d
hex1b590d4

28676308 has 24 divisors (see below), whose sum is σ = 52573248. Its totient is φ = 13660416.

The previous prime is 28676303. The next prime is 28676311. The reversal of 28676308 is 80367682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28676303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32035 + ... + 32917.

It is an arithmetic number, because the mean of its divisors is an integer number (2190552).

Almost surely, 228676308 is an apocalyptic number.

It is an amenable number.

28676308 is a deficient number, since it is larger than the sum of its proper divisors (23896940).

28676308 is a wasteful number, since it uses less digits than its factorization.

28676308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1261 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28676308 is about 5355.0264238377. The cubic root of 28676308 is about 306.0843175450.

The spelling of 28676308 in words is "twenty-eight million, six hundred seventy-six thousand, three hundred eight".

Divisors: 1 2 4 23 46 92 353 706 883 1412 1766 3532 8119 16238 20309 32476 40618 81236 311699 623398 1246796 7169077 14338154 28676308