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28275934 = 2130110867
BaseRepresentation
bin110101111011…
…1010011011110
31222012120021211
41223313103132
524214312214
62450015034
7462225061
oct153672336
958176254
1028275934
1114a63145
12957747a
135b2032b
143a808d8
1527380c4
hex1af74de

28275934 has 8 divisors (see below), whose sum is σ = 42450408. Its totient is φ = 14125800.

The previous prime is 28275931. The next prime is 28275941. The reversal of 28275934 is 43957282.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28275931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2832 + ... + 8035.

It is an arithmetic number, because the mean of its divisors is an integer number (5306301).

Almost surely, 228275934 is an apocalyptic number.

28275934 is a deficient number, since it is larger than the sum of its proper divisors (14174474).

28275934 is a wasteful number, since it uses less digits than its factorization.

28275934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170.

The product of its digits is 120960, while the sum is 40.

The square root of 28275934 is about 5317.5120122102. The cubic root of 28275934 is about 304.6531360885.

The spelling of 28275934 in words is "twenty-eight million, two hundred seventy-five thousand, nine hundred thirty-four".

Divisors: 1 2 1301 2602 10867 21734 14137967 28275934