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28576030 = 257408229
BaseRepresentation
bin110110100000…
…0100100011110
31222202210221111
41231000210132
524303413110
62500252234
7464615020
oct155004436
958683844
1028576030
111514865a
1296a107a
135bc6ac2
143b1c010
152796e8a
hex1b4091e

28576030 has 16 divisors (see below), whose sum is σ = 58785120. Its totient is φ = 9797472.

The previous prime is 28576027. The next prime is 28576033. The reversal of 28576030 is 3067582.

It is an interprime number because it is at equal distance from previous prime (28576027) and next prime (28576033).

It is a junction number, because it is equal to n+sod(n) for n = 28575983 and 28576001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28576033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204045 + ... + 204184.

It is an arithmetic number, because the mean of its divisors is an integer number (3674070).

Almost surely, 228576030 is an apocalyptic number.

28576030 is an abundant number, since it is smaller than the sum of its proper divisors (30209090).

28576030 is a wasteful number, since it uses less digits than its factorization.

28576030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408243.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 28576030 is about 5345.6552451500. The cubic root of 28576030 is about 305.7271194218.

The spelling of 28576030 in words is "twenty-eight million, five hundred seventy-six thousand, thirty".

Divisors: 1 2 5 7 10 14 35 70 408229 816458 2041145 2857603 4082290 5715206 14288015 28576030