Base | Representation |
---|---|
bin | 11001110100110000… |
… | …110001001001011110 |
3 | 2122120110112012022120 |
4 | 121310300301021132 |
5 | 423242024320204 |
6 | 20423255123410 |
7 | 2001100305213 |
oct | 316460611136 |
9 | 78513465276 |
10 | 27728745054 |
11 | 1083a17662a |
12 | 545a373566 |
13 | 27cb97596a |
14 | 14b093db0a |
15 | ac45346d9 |
hex | 674c3125e |
27728745054 has 16 divisors (see below), whose sum is σ = 56956341648. Its totient is φ = 8993106432.
The previous prime is 27728745049. The next prime is 27728745071. The reversal of 27728745054 is 45054782772.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 27728744988 and 27728745006.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62451907 + ... + 62452350.
It is an arithmetic number, because the mean of its divisors is an integer number (3559771353).
Almost surely, 227728745054 is an apocalyptic number.
27728745054 is an abundant number, since it is smaller than the sum of its proper divisors (29227596594).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27728745054 is a wasteful number, since it uses less digits than its factorization.
27728745054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124904299.
The product of its (nonzero) digits is 4390400, while the sum is 51.
The spelling of 27728745054 in words is "twenty-seven billion, seven hundred twenty-eight million, seven hundred forty-five thousand, fifty-four".
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