Base | Representation |
---|---|
bin | 110101010011… |
… | …0110110010010 |
3 | 1221120211020100 |
4 | 1222212312102 |
5 | 24123241021 |
6 | 2434553230 |
7 | 456353226 |
oct | 152466622 |
9 | 57524210 |
10 | 27946386 |
11 | 14858596 |
12 | 9438816 |
13 | 5a36330 |
14 | 39d6786 |
15 | 26c0626 |
hex | 1aa6d92 |
27946386 has 24 divisors (see below), whose sum is σ = 65208780. Its totient is φ = 8598816.
The previous prime is 27946363. The next prime is 27946393. The reversal of 27946386 is 68364972.
27946386 is a `hidden beast` number, since 2 + 7 + 9 + 4 + 638 + 6 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 24950025 + 2996361 = 4995^2 + 1731^2 .
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 11 ways as a sum of consecutive naturals, for example, 59481 + ... + 59948.
Almost surely, 227946386 is an apocalyptic number.
27946386 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
27946386 is an abundant number, since it is smaller than the sum of its proper divisors (37262394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27946386 is a wasteful number, since it uses less digits than its factorization.
27946386 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 119450 (or 119447 counting only the distinct ones).
The product of its digits is 435456, while the sum is 45.
The square root of 27946386 is about 5286.4341478921. The cubic root of 27946386 is about 303.4649594457.
It can be divided in two parts, 2794 and 6386, that added together give a triangular number (9180 = T135).
The spelling of 27946386 in words is "twenty-seven million, nine hundred forty-six thousand, three hundred eighty-six".
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