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27289948 = 2276831427
BaseRepresentation
bin110100000011…
…0100101011100
31220100110202211
41220012211130
523441234243
62412530204
7450650350
oct150064534
956313684
1027289948
111444a384
129180964
1358665ca
1438a5460
1525e0d9d
hex1a0695c

27289948 has 24 divisors (see below), whose sum is σ = 54698112. Its totient is φ = 11670384.

The previous prime is 27289943. The next prime is 27289961. The reversal of 27289948 is 84998272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27289943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18411 + ... + 19837.

It is an arithmetic number, because the mean of its divisors is an integer number (2279088).

Almost surely, 227289948 is an apocalyptic number.

27289948 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27289948 is an abundant number, since it is smaller than the sum of its proper divisors (27408164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27289948 is a wasteful number, since it uses less digits than its factorization.

27289948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121 (or 2119 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 27289948 is about 5223.9781775961. The cubic root of 27289948 is about 301.0700601809.

The spelling of 27289948 in words is "twenty-seven million, two hundred eighty-nine thousand, nine hundred forty-eight".

Divisors: 1 2 4 7 14 28 683 1366 1427 2732 2854 4781 5708 9562 9989 19124 19978 39956 974641 1949282 3898564 6822487 13644974 27289948