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28583093 = 7112291621
BaseRepresentation
bin110110100001…
…0010010110101
31222210011122002
41231002102311
524304124333
62500345045
7464644430
oct155022265
958704562
1028583093
11151529a0
1296a5185
135bca096
143b20817
1527990e8
hex1b424b5

28583093 has 16 divisors (see below), whose sum is σ = 35813760. Its totient is φ = 22161600.

The previous prime is 28583083. The next prime is 28583119. The reversal of 28583093 is 39038582.

It is a cyclic number.

It is not a de Polignac number, because 28583093 - 210 = 28582069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28583033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16823 + ... + 18443.

It is an arithmetic number, because the mean of its divisors is an integer number (2238360).

Almost surely, 228583093 is an apocalyptic number.

It is an amenable number.

28583093 is a deficient number, since it is larger than the sum of its proper divisors (7230667).

28583093 is a wasteful number, since it uses less digits than its factorization.

28583093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28583093 is about 5346.3158342919. The cubic root of 28583093 is about 305.7523057145.

The spelling of 28583093 in words is "twenty-eight million, five hundred eighty-three thousand, ninety-three".

Divisors: 1 7 11 77 229 1603 1621 2519 11347 17633 17831 124817 371209 2598463 4083299 28583093