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28984014 = 2331731573
BaseRepresentation
bin110111010010…
…0001011001110
32000112112121000
41232210023032
524404442024
62513121130
7501234333
oct156441316
960475530
1028984014
11153a7134
1298591a6
13600a707
143bc698a
152827cc9
hex1ba42ce

28984014 has 32 divisors (see below), whose sum is σ = 68199840. Its totient is φ = 9092736.

The previous prime is 28984013. The next prime is 28984027. The reversal of 28984014 is 41048982.

It is a self number, because there is not a number n which added to its sum of digits gives 28984014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28984013) 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 15 ways as a sum of consecutive naturals, for example, 14869 + ... + 16704.

It is an arithmetic number, because the mean of its divisors is an integer number (2131245).

Almost surely, 228984014 is an apocalyptic number.

28984014 is an abundant number, since it is smaller than the sum of its proper divisors (39215826).

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

28984014 is a wasteful number, since it uses less digits than its factorization.

28984014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31601 (or 31595 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 28984014 is about 5383.6803396933. The cubic root of 28984014 is about 307.1752192535.

The spelling of 28984014 in words is "twenty-eight million, nine hundred eighty-four thousand, fourteen".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 31573 63146 94719 189438 284157 536741 568314 852471 1073482 1610223 1704942 3220446 4830669 9661338 14492007 28984014