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28810468 = 2235920063
BaseRepresentation
bin110110111100…
…1110011100100
32000012201112101
41231321303210
524333413333
62505301444
7466612351
oct155716344
960181471
1028810468
1115298805
129794884
135c7971b
143b7d628
1527e167d
hex1b79ce4

28810468 has 12 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 14364392.

The previous prime is 28810459. The next prime is 28810487. The reversal of 28810468 is 86401882.

It is a congruent number.

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, 8596 + ... + 11467.

It is an arithmetic number, because the mean of its divisors is an integer number (4213440).

Almost surely, 228810468 is an apocalyptic number.

It is an amenable number.

28810468 is a deficient number, since it is larger than the sum of its proper divisors (21750812).

28810468 is a wasteful number, since it uses less digits than its factorization.

28810468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20426 (or 20424 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 37.

The square root of 28810468 is about 5367.5383557083. The cubic root of 28810468 is about 306.5609060845.

The spelling of 28810468 in words is "twenty-eight million, eight hundred ten thousand, four hundred sixty-eight".

Divisors: 1 2 4 359 718 1436 20063 40126 80252 7202617 14405234 28810468