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28976 = 241811
BaseRepresentation
bin111000100110000
31110202012
413010300
51411401
6342052
7150323
oct70460
943665
1028976
111a852
1214928
131025c
14a7ba
1588bb
hex7130

28976 has 10 divisors (see below), whose sum is σ = 56172. Its totient is φ = 14480.

The previous prime is 28961. The next prime is 28979. The reversal of 28976 is 67982.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (28979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890 + ... + 921.

228976 is an apocalyptic number.

It is an amenable number.

28976 is a deficient number, since it is larger than the sum of its proper divisors (27196).

28976 is a wasteful number, since it uses less digits than its factorization.

28976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819 (or 1813 counting only the distinct ones).

The product of its digits is 6048, while the sum is 32.

The square root of 28976 is about 170.2233826476. The cubic root of 28976 is about 30.7146905610.

The spelling of 28976 in words is "twenty-eight thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 16 1811 3622 7244 14488 28976