Base | Representation |
---|---|
bin | 11001011010011000… |
… | …011001010000001001 |
3 | 2121102121200221102222 |
4 | 121122120121100021 |
5 | 421340223214410 |
6 | 20311324503425 |
7 | 1654114301126 |
oct | 313230312011 |
9 | 77377627388 |
10 | 27286148105 |
11 | 10632356a27 |
12 | 53560aab75 |
13 | 275b06b788 |
14 | 146bc4b74d |
15 | a9a759955 |
hex | 65a619409 |
27286148105 has 8 divisors (see below), whose sum is σ = 32790091464. Its totient is φ = 21797776000.
The previous prime is 27286148089. The next prime is 27286148107. The reversal of 27286148105 is 50184168272.
It can be written as a sum of positive squares in 4 ways, for example, as 16436009209 + 10850138896 = 128203^2 + 104164^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 27286148105 - 24 = 27286148089 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (27286148107) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3888956 + ... + 3895965.
It is an arithmetic number, because the mean of its divisors is an integer number (4098761433).
Almost surely, 227286148105 is an apocalyptic number.
It is an amenable number.
27286148105 is a deficient number, since it is larger than the sum of its proper divisors (5503943359).
27286148105 is an equidigital number, since it uses as much as digits as its factorization.
27286148105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7785627.
The product of its (nonzero) digits is 215040, while the sum is 44.
The spelling of 27286148105 in words is "twenty-seven billion, two hundred eighty-six million, one hundred forty-eight thousand, one hundred five".
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