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28054 = 213283
BaseRepresentation
bin110110110010110
31102111001
412312112
51344204
6333514
7144535
oct66626
942431
1028054
111a094
121429a
13ca00
14a31c
1584a4
hex6d96

28054 has 12 divisors (see below), whose sum is σ = 46116. Its totient is φ = 12792.

The previous prime is 28051. The next prime is 28057. The reversal of 28054 is 45082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28051) and next prime (28057).

28054 is a modest number, since divided by 54 gives 28 as remainder.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 297 + ... + 379.

It is an arithmetic number, because the mean of its divisors is an integer number (3843).

228054 is an apocalyptic number.

28054 is a deficient number, since it is larger than the sum of its proper divisors (18062).

28054 is a wasteful number, since it uses less digits than its factorization.

28054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 28054 is about 167.4932834474. The cubic root of 28054 is about 30.3853981121.

It can be divided in two parts, 2805 and 4, that added together give a square (2809 = 532).

The spelling of 28054 in words is "twenty-eight thousand, fifty-four".

Divisors: 1 2 13 26 83 166 169 338 1079 2158 14027 28054