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28285301 = 112779283
BaseRepresentation
bin110101111100…
…1100101110101
31222020001010202
41223321211311
524220112201
62450130245
7462264302
oct153714565
958201122
1028285301
1114a6a190
129580985
135b24685
143a840a9
15273ac6b
hex1af9975

28285301 has 8 divisors (see below), whose sum is σ = 30971424. Its totient is φ = 25618320.

The previous prime is 28285261. The next prime is 28285303. The reversal of 28285301 is 10358282.

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

It is a cyclic number.

It is not a de Polignac number, because 28285301 - 214 = 28268917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285303) 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, 1595 + ... + 7688.

It is an arithmetic number, because the mean of its divisors is an integer number (3871428).

Almost surely, 228285301 is an apocalyptic number.

It is an amenable number.

28285301 is a deficient number, since it is larger than the sum of its proper divisors (2686123).

28285301 is a wasteful number, since it uses less digits than its factorization.

28285301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9571.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28285301 is about 5318.3927083283. The cubic root of 28285301 is about 304.6867733018.

The spelling of 28285301 in words is "twenty-eight million, two hundred eighty-five thousand, three hundred one".

Divisors: 1 11 277 3047 9283 102113 2571391 28285301