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28637195 = 534916411
BaseRepresentation
bin110110100111…
…1100000001011
31222212220211212
41231033200023
524312342240
62501443335
7465261236
oct155174013
958786755
1028637195
111518a604
12971054b
135c188b2
143b3641d
1527aa165
hex1b4f80b

28637195 has 8 divisors (see below), whose sum is σ = 34465200. Its totient is φ = 22842720.

The previous prime is 28637173. The next prime is 28637261. The reversal of 28637195 is 59173682.

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

It is not a de Polignac number, because 28637195 - 214 = 28620811 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6461 + ... + 9950.

It is an arithmetic number, because the mean of its divisors is an integer number (4308150).

Almost surely, 228637195 is an apocalyptic number.

28637195 is a deficient number, since it is larger than the sum of its proper divisors (5828005).

28637195 is a wasteful number, since it uses less digits than its factorization.

28637195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16765.

The product of its digits is 90720, while the sum is 41.

The square root of 28637195 is about 5351.3731882574. The cubic root of 28637195 is about 305.9450931715.

The spelling of 28637195 in words is "twenty-eight million, six hundred thirty-seven thousand, one hundred ninety-five".

Divisors: 1 5 349 1745 16411 82055 5727439 28637195