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28276054 = 214138027
BaseRepresentation
bin110101111011…
…1010101010110
31222012120110021
41223313111112
524214313204
62450015354
7462225322
oct153672526
958176407
1028276054
1114a63244
12957755a
135b203c1
143a80982
152738154
hex1af7556

28276054 has 4 divisors (see below), whose sum is σ = 42414084. Its totient is φ = 14138026.

The previous prime is 28276051. The next prime is 28276067. The reversal of 28276054 is 45067282.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28276051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7069012 + ... + 7069015.

It is an arithmetic number, because the mean of its divisors is an integer number (10603521).

Almost surely, 228276054 is an apocalyptic number.

28276054 is a deficient number, since it is larger than the sum of its proper divisors (14138030).

28276054 is a wasteful number, since it uses less digits than its factorization.

28276054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14138029.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28276054 is about 5317.5232956706. The cubic root of 28276054 is about 304.6535670595.

The spelling of 28276054 in words is "twenty-eight million, two hundred seventy-six thousand, fifty-four".

Divisors: 1 2 14138027 28276054