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28798934 = 219317457
BaseRepresentation
bin110110111011…
…0111111010110
32000012010201012
41231312333112
524333031214
62505132222
7466533623
oct155667726
960163635
1028798934
111529007a
12978a072
135c743b8
143b7934a
1527dd03e
hex1b76fd6

28798934 has 8 divisors (see below), whose sum is σ = 43226568. Its totient is φ = 14390080.

The previous prime is 28798883. The next prime is 28798937. The reversal of 28798934 is 43989782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (5403321).

Almost surely, 228798934 is an apocalyptic number.

28798934 is a deficient number, since it is larger than the sum of its proper divisors (14427634).

28798934 is a wasteful number, since it uses less digits than its factorization.

28798934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9390.

The product of its digits is 870912, while the sum is 50.

The square root of 28798934 is about 5366.4638263944. The cubic root of 28798934 is about 306.5199910318.

The spelling of 28798934 in words is "twenty-eight million, seven hundred ninety-eight thousand, nine hundred thirty-four".

Divisors: 1 2 1931 3862 7457 14914 14399467 28798934