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28547014 = 214273507
BaseRepresentation
bin110110011100…
…1011111000110
31222201100010211
41230321133012
524302001024
62455510034
7464434306
oct154713706
958640124
1028547014
1115128881
12968831a
135bb6832
143b11606
15278d594
hex1b397c6

28547014 has 4 divisors (see below), whose sum is σ = 42820524. Its totient is φ = 14273506.

The previous prime is 28547011. The next prime is 28547021. The reversal of 28547014 is 41074582.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28547011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7136752 + ... + 7136755.

It is an arithmetic number, because the mean of its divisors is an integer number (10705131).

Almost surely, 228547014 is an apocalyptic number.

28547014 is a deficient number, since it is larger than the sum of its proper divisors (14273510).

28547014 is a wasteful number, since it uses less digits than its factorization.

28547014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273509.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 28547014 is about 5342.9405761247. The cubic root of 28547014 is about 305.6236062990.

The spelling of 28547014 in words is "twenty-eight million, five hundred forty-seven thousand, fourteen".

Divisors: 1 2 14273507 28547014