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28682133 = 324139671
BaseRepresentation
bin110110101101…
…0011110010101
31222222012111020
41231122132111
524320312013
62502431353
7465536244
oct155323625
958865436
1028682133
1115210347
129732559
135c3319c
143b4895b
1527b8623
hex1b5a795

28682133 has 8 divisors (see below), whose sum is σ = 38402496. Its totient is φ = 19041600.

The previous prime is 28682123. The next prime is 28682149. The reversal of 28682133 is 33128682.

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

It is not a de Polignac number, because 28682133 - 24 = 28682117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28682094 and 28682103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28682123) 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, 19113 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (4800312).

Almost surely, 228682133 is an apocalyptic number.

It is an amenable number.

28682133 is a deficient number, since it is larger than the sum of its proper divisors (9720363).

28682133 is a wasteful number, since it uses less digits than its factorization.

28682133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39915.

The product of its digits is 13824, while the sum is 33.

The square root of 28682133 is about 5355.5702777575. The cubic root of 28682133 is about 306.1050410454.

The spelling of 28682133 in words is "twenty-eight million, six hundred eighty-two thousand, one hundred thirty-three".

Divisors: 1 3 241 723 39671 119013 9560711 28682133