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28473119 = 1992719
BaseRepresentation
bin110110010011…
…1011100011111
31222120120202222
41230213130133
524242114434
62454135555
7464006003
oct154473437
958516688
1028473119
1115088304
1296515bb
135b8bccc
143ad2703
15277672e
hex1b2771f

28473119 has 6 divisors (see below), whose sum is σ = 28656720. Its totient is φ = 28290636.

The previous prime is 28473083. The next prime is 28473161. The reversal of 28473119 is 91137482.

It is not a de Polignac number, because 28473119 - 216 = 28407583 is a prime.

It is a super-2 number, since 2×284731192 = 1621437011176322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28443119) 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, 39242 + ... + 39960.

It is an arithmetic number, because the mean of its divisors is an integer number (4776120).

Almost surely, 228473119 is an apocalyptic number.

28473119 is a deficient number, since it is larger than the sum of its proper divisors (183601).

28473119 is an frugal number, since it uses more digits than its factorization.

28473119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 918 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 28473119 is about 5336.0208957612. The cubic root of 28473119 is about 305.3596724363.

The spelling of 28473119 in words is "twenty-eight million, four hundred seventy-three thousand, one hundred nineteen".

Divisors: 1 199 719 39601 143081 28473119