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28482678 = 234725117
BaseRepresentation
bin110110010100…
…1110001110110
31222121001220000
41230221301312
524242421203
62454252130
7464045610
oct154516166
958531800
1028482678
1115094504
129657046
135b93473
143ad5db0
1527794a3
hex1b29c76

28482678 has 40 divisors (see below), whose sum is σ = 72942672. Its totient is φ = 8137584.

The previous prime is 28482673. The next prime is 28482689. The reversal of 28482678 is 87628482.

It is a happy number.

It is a super-2 number, since 2×284826782 = 1622525892103368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28482673) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11425 + ... + 13692.

Almost surely, 228482678 is an apocalyptic number.

28482678 is an abundant number, since it is smaller than the sum of its proper divisors (44459994).

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

28482678 is a wasteful number, since it uses less digits than its factorization.

28482678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25138 (or 25129 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 28482678 is about 5336.9165254855. The cubic root of 28482678 is about 305.3938404121.

The spelling of 28482678 in words is "twenty-eight million, four hundred eighty-two thousand, six hundred seventy-eight".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 25117 50234 75351 150702 175819 226053 351638 452106 527457 678159 1054914 1356318 1582371 2034477 3164742 4068954 4747113 9494226 14241339 28482678