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28916124 = 2234356039
BaseRepresentation
bin110111001001…
…1100110011100
32000102002110120
41232103212130
524400303444
62511434540
7500532366
oct156234634
960362416
1028916124
1115360126
129825a50
135cb5843
143ba9d36
152812b19
hex1b9399c

28916124 has 24 divisors (see below), whose sum is σ = 69041280. Its totient is φ = 9414384.

The previous prime is 28916123. The next prime is 28916141. The reversal of 28916124 is 42161982.

It is a super-2 number, since 2×289161242 = 1672284454366752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28916123) 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, 27504 + ... + 28535.

It is an arithmetic number, because the mean of its divisors is an integer number (2876720).

Almost surely, 228916124 is an apocalyptic number.

It is an amenable number.

28916124 is an abundant number, since it is smaller than the sum of its proper divisors (40125156).

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

28916124 is a wasteful number, since it uses less digits than its factorization.

28916124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56089 (or 56087 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 28916124 is about 5377.3714768463. The cubic root of 28916124 is about 306.9351969520.

The spelling of 28916124 in words is "twenty-eight million, nine hundred sixteen thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 56039 112078 168117 224156 336234 672468 2409677 4819354 7229031 9638708 14458062 28916124