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28675242 = 233531023
BaseRepresentation
bin110110101100…
…0110010101010
31222221212001000
41231120302222
524320101432
62502335430
7465510201
oct155306252
958855030
1028675242
1115206152
12972a576
135c2cccb
143b46238
1527b657c
hex1b58caa

28675242 has 16 divisors (see below), whose sum is σ = 63722880. Its totient is φ = 9558396.

The previous prime is 28675223. The next prime is 28675261. The reversal of 28675242 is 24257682.

It is an interprime number because it is at equal distance from previous prime (28675223) and next prime (28675261).

It is a junction number, because it is equal to n+sod(n) for n = 28675197 and 28675206.

It is a congruent number.

It is an unprimeable number.

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, 265458 + ... + 265565.

It is an arithmetic number, because the mean of its divisors is an integer number (3982680).

Almost surely, 228675242 is an apocalyptic number.

28675242 is an abundant number, since it is smaller than the sum of its proper divisors (35047638).

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

28675242 is a wasteful number, since it uses less digits than its factorization.

28675242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531034 (or 531028 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28675242 is about 5354.9268902572. The cubic root of 28675242 is about 306.0805247517.

The spelling of 28675242 in words is "twenty-eight million, six hundred seventy-five thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 531023 1062046 1593069 3186138 4779207 9558414 14337621 28675242