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28534954 = 272291173
BaseRepresentation
bin110110011011…
…0100010101010
31222200201121011
41230312202222
524301104304
62455334134
7464354200
oct154664252
958621534
1028534954
111511a808
12968134a
135bb11b6
143b0b070
152789c04
hex1b368aa

28534954 has 12 divisors (see below), whose sum is σ = 49790754. Its totient is φ = 12229224.

The previous prime is 28534931. The next prime is 28534963. The reversal of 28534954 is 45943582.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 603729 = 5285^2 + 777^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145489 + ... + 145684.

Almost surely, 228534954 is an apocalyptic number.

28534954 is a deficient number, since it is larger than the sum of its proper divisors (21255800).

28534954 is a wasteful number, since it uses less digits than its factorization.

28534954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291189 (or 291182 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 28534954 is about 5341.8118649013. The cubic root of 28534954 is about 305.5805622191.

The spelling of 28534954 in words is "twenty-eight million, five hundred thirty-four thousand, nine hundred fifty-four".

Divisors: 1 2 7 14 49 98 291173 582346 2038211 4076422 14267477 28534954