Base | Representation |
---|---|
bin | 110011110000… |
… | …1110000110000 |
3 | 1220001210212121 |
4 | 1213201300300 |
5 | 23421422440 |
6 | 2405404024 |
7 | 446451541 |
oct | 147416060 |
9 | 56053777 |
10 | 27139120 |
11 | 14357028 |
12 | 9109614 |
13 | 5812a68 |
14 | 38664c8 |
15 | 25b134a |
hex | 19e1c30 |
27139120 has 20 divisors (see below), whose sum is σ = 63098640. Its totient is φ = 10855616.
The previous prime is 27139117. The next prime is 27139121. The reversal of 27139120 is 2193172.
It is a tau number, because it is divible by the number of its divisors (20).
It is a zygodrome in base 2.
It is not an unprimeable number, because it can be changed into a prime (27139121) 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 3 ways as a sum of consecutive naturals, for example, 169540 + ... + 169699.
It is an arithmetic number, because the mean of its divisors is an integer number (3154932).
Almost surely, 227139120 is an apocalyptic number.
27139120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
27139120 is an abundant number, since it is smaller than the sum of its proper divisors (35959520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27139120 is a wasteful number, since it uses less digits than its factorization.
27139120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 339252 (or 339246 counting only the distinct ones).
The product of its (nonzero) digits is 756, while the sum is 25.
The square root of 27139120 is about 5209.5220510139. The cubic root of 27139120 is about 300.5143768102.
The spelling of 27139120 in words is "twenty-seven million, one hundred thirty-nine thousand, one hundred twenty".
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