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28766876 = 2214714889
BaseRepresentation
bin110110110111…
…1001010011100
32000010111201212
41231233022130
524331020001
62504323552
7466341305
oct155571234
960114655
1028766876
1115268a86
1297735b8
135c62928
143b6b7ac
1527d37bb
hex1b6f29c

28766876 has 12 divisors (see below), whose sum is σ = 50386560. Its totient is φ = 14370720.

The previous prime is 28766833. The next prime is 28766909. The reversal of 28766876 is 67866782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3440 + ... + 8328.

It is an arithmetic number, because the mean of its divisors is an integer number (4198880).

Almost surely, 228766876 is an apocalyptic number.

It is an amenable number.

28766876 is a deficient number, since it is larger than the sum of its proper divisors (21619684).

28766876 is a wasteful number, since it uses less digits than its factorization.

28766876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364 (or 6362 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 28766876 is about 5363.4761116276. The cubic root of 28766876 is about 306.4062129052.

The spelling of 28766876 in words is "twenty-eight million, seven hundred sixty-six thousand, eight hundred seventy-six".

Divisors: 1 2 4 1471 2942 4889 5884 9778 19556 7191719 14383438 28766876