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28670602 = 217843253
BaseRepresentation
bin110110101011…
…1101010001010
31222221121200011
41231113222022
524314424402
62502302134
7465460522
oct155275212
958847604
1028670602
1115202714
12972794a
135c2ab6c
143b44682
1527b4ed7
hex1b57a8a

28670602 has 8 divisors (see below), whose sum is σ = 45535716. Its totient is φ = 13492032.

The previous prime is 28670599. The next prime is 28670617. The reversal of 28670602 is 20607682.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21706281 + 6964321 = 4659^2 + 2639^2 .

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, 421593 + ... + 421660.

Almost surely, 228670602 is an apocalyptic number.

28670602 is a deficient number, since it is larger than the sum of its proper divisors (16865114).

28670602 is a wasteful number, since it uses less digits than its factorization.

28670602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843272.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28670602 is about 5354.4936268521. The cubic root of 28670602 is about 306.0640146877.

The spelling of 28670602 in words is "twenty-eight million, six hundred seventy thousand, six hundred two".

Divisors: 1 2 17 34 843253 1686506 14335301 28670602