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27980048 = 243115623
BaseRepresentation
bin110101010111…
…1000100010000
31221122112102002
41222233010100
524130330143
62435413132
7456553325
oct152570420
957575362
1027980048
1114880908
1294541a8
135a48755
143a04b4c
1526ca5b8
hex1aaf110

27980048 has 20 divisors (see below), whose sum is σ = 54395328. Its totient is φ = 13942560.

The previous prime is 27980039. The next prime is 27980059. The reversal of 27980048 is 84008972.

It is a junction number, because it is equal to n+sod(n) for n = 27979993 and 27980020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165 + ... + 7787.

Almost surely, 227980048 is an apocalyptic number.

It is an amenable number.

27980048 is a deficient number, since it is larger than the sum of its proper divisors (26415280).

27980048 is a wasteful number, since it uses less digits than its factorization.

27980048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5942 (or 5936 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 27980048 is about 5289.6169993677. The cubic root of 27980048 is about 303.5867538310.

The spelling of 27980048 in words is "twenty-seven million, nine hundred eighty thousand, forty-eight".

Divisors: 1 2 4 8 16 311 622 1244 2488 4976 5623 11246 22492 44984 89968 1748753 3497506 6995012 13990024 27980048