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28034533 = 163293587
BaseRepresentation
bin110101011110…
…0010111100101
31221202022011001
41222330113211
524134101113
62440513301
7460201222
oct152742745
957668131
1028034533
111490883a
12947b831
135a674a7
143a1a949
1526db7dd
hex1abc5e5

28034533 has 8 divisors (see below), whose sum is σ = 28351008. Its totient is φ = 27720144.

The previous prime is 28034521. The next prime is 28034537. The reversal of 28034533 is 33543082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28034533 - 217 = 27903461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28034537) 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, 47466 + ... + 48052.

It is an arithmetic number, because the mean of its divisors is an integer number (3543876).

Almost surely, 228034533 is an apocalyptic number.

It is an amenable number.

28034533 is a deficient number, since it is larger than the sum of its proper divisors (316475).

28034533 is a wasteful number, since it uses less digits than its factorization.

28034533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 28034533 is about 5294.7646784347. The cubic root of 28034533 is about 303.7836822432.

The spelling of 28034533 in words is "twenty-eight million, thirty-four thousand, five hundred thirty-three".

Divisors: 1 163 293 587 47759 95681 171991 28034533