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28112082 = 2337126631
BaseRepresentation
bin110101100111…
…1010011010010
31221220020112020
41223033103102
524144041312
62442312310
7460643265
oct153172322
957806466
1028112082
1114961029
1294b8696
135a9388b
143a3acdc
15270478c
hex1acf4d2

28112082 has 16 divisors (see below), whose sum is σ = 57744192. Its totient is φ = 9117360.

The previous prime is 28112069. The next prime is 28112087. The reversal of 28112082 is 28021182.

It is not an unprimeable number, because it can be changed into a prime (28112087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63094 + ... + 63537.

It is an arithmetic number, because the mean of its divisors is an integer number (3609012).

Almost surely, 228112082 is an apocalyptic number.

28112082 is an abundant number, since it is smaller than the sum of its proper divisors (29632110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28112082 is a wasteful number, since it uses less digits than its factorization.

28112082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126673.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 28112082 is about 5302.0827982973. The cubic root of 28112082 is about 304.0635327163.

The spelling of 28112082 in words is "twenty-eight million, one hundred twelve thousand, eighty-two".

Divisors: 1 2 3 6 37 74 111 222 126631 253262 379893 759786 4685347 9370694 14056041 28112082