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28406882 = 272029063
BaseRepresentation
bin110110001011…
…1010001100010
31222110012220202
41230113101202
524233010012
62452505202
7463311620
oct154272142
958405822
1028406882
1115042569
12961b202
135b67b0a
143ab6510
152761cc2
hex1b17462

28406882 has 8 divisors (see below), whose sum is σ = 48697536. Its totient is φ = 12174372.

The previous prime is 28406879. The next prime is 28406923. The reversal of 28406882 is 28860482.

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

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, 1014518 + ... + 1014545.

It is an arithmetic number, because the mean of its divisors is an integer number (6087192).

Almost surely, 228406882 is an apocalyptic number.

28406882 is a deficient number, since it is larger than the sum of its proper divisors (20290654).

28406882 is a wasteful number, since it uses less digits than its factorization.

28406882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029072.

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 28406882 is about 5329.8106908220. The cubic root of 28406882 is about 305.1227025781.

The spelling of 28406882 in words is "twenty-eight million, four hundred six thousand, eight hundred eighty-two".

Divisors: 1 2 7 14 2029063 4058126 14203441 28406882