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28112010 = 235937067
BaseRepresentation
bin110101100111…
…1010010001010
31221220020102120
41223033102022
524144041020
62442312110
7460643133
oct153172212
957806376
1028112010
1114960a73
1294b8636
135a93834
143a3ac8a
152704740
hex1acf48a

28112010 has 16 divisors (see below), whose sum is σ = 67468896. Its totient is φ = 7496528.

The previous prime is 28111997. The next prime is 28112011. The reversal of 28112010 is 1021182.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (28112011) by changing a digit.

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, 468504 + ... + 468563.

It is an arithmetic number, because the mean of its divisors is an integer number (4216806).

Almost surely, 228112010 is an apocalyptic number.

28112010 is an abundant number, since it is smaller than the sum of its proper divisors (39356886).

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

28112010 is a wasteful number, since it uses less digits than its factorization.

28112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937077.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 28112010 is about 5302.0760085084. The cubic root of 28112010 is about 304.0632731293.

Adding to 28112010 its reverse (1021182), we get a palindrome (29133192).

The spelling of 28112010 in words is "twenty-eight million, one hundred twelve thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 937067 1874134 2811201 4685335 5622402 9370670 14056005 28112010