Base | Representation |
---|---|
bin | 110110011010… |
… | …0100111001001 |
3 | 1222200022202101 |
4 | 1230310213021 |
5 | 24300331144 |
6 | 2455233401 |
7 | 464322145 |
oct | 154644711 |
9 | 58608671 |
10 | 28527049 |
11 | 15114881 |
12 | 9678861 |
13 | 5baa715 |
14 | 3b08225 |
15 | 27876d4 |
hex | 1b349c9 |
28527049 has 4 divisors (see below), whose sum is σ = 28541380. Its totient is φ = 28512720.
The previous prime is 28527047. The next prime is 28527053. The reversal of 28527049 is 94072582.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 6969600 + 21557449 = 2640^2 + 4643^2 .
It is a cyclic number.
It is not a de Polignac number, because 28527049 - 21 = 28527047 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 28526999 and 28527017.
It is not an unprimeable number, because it can be changed into a prime (28527041) by changing a digit.
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 3 ways as a sum of consecutive naturals, for example, 3582 + ... + 8359.
It is an arithmetic number, because the mean of its divisors is an integer number (7135345).
It is a Poulet number, since it divides 228527048-1.
Almost surely, 228527049 is an apocalyptic number.
It is an amenable number.
28527049 is a deficient number, since it is larger than the sum of its proper divisors (14331).
28527049 is a wasteful number, since it uses less digits than its factorization.
28527049 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14330.
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 28527049 is about 5341.0718961647. The cubic root of 28527049 is about 305.5523414220.
The spelling of 28527049 in words is "twenty-eight million, five hundred twenty-seven thousand, forty-nine".
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