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28496263 = 179397401
BaseRepresentation
bin110110010110…
…1000110000111
31222121202112011
41230231012013
524243340023
62454435051
7464133325
oct154550607
958552464
1028496263
11150a3734
129662a87
135b996c3
143adad15
15277d50d
hex1b2d187

28496263 has 8 divisors (see below), whose sum is σ = 28799280. Its totient is φ = 28195200.

The previous prime is 28496191. The next prime is 28496269. The reversal of 28496263 is 36269482.

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 28496263 - 217 = 28365191 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 (28496269) by changing a digit.

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, 70863 + ... + 71263.

It is an arithmetic number, because the mean of its divisors is an integer number (3599910).

Almost surely, 228496263 is an apocalyptic number.

28496263 is a deficient number, since it is larger than the sum of its proper divisors (303017).

28496263 is a wasteful number, since it uses less digits than its factorization.

28496263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977.

The product of its digits is 124416, while the sum is 40.

The square root of 28496263 is about 5338.1891124238. The cubic root of 28496263 is about 305.4423858930.

The spelling of 28496263 in words is "twenty-eight million, four hundred ninety-six thousand, two hundred sixty-three".

Divisors: 1 179 397 401 71063 71779 159197 28496263