Base | Representation |
---|---|
bin | 110101111100… |
… | …1100001110001 |
3 | 1222020000210010 |
4 | 1223321201301 |
5 | 24220110131 |
6 | 2450125133 |
7 | 462263451 |
oct | 153714161 |
9 | 58200703 |
10 | 28285041 |
11 | 14a69a74 |
12 | 95807a9 |
13 | 5b24515 |
14 | 3a83d61 |
15 | 273ab46 |
hex | 1af9871 |
28285041 has 8 divisors (see below), whose sum is σ = 37747584. Its totient is φ = 18839600.
The previous prime is 28285031. The next prime is 28285069. The reversal of 28285041 is 14058282.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 28285041 - 217 = 28153969 is a prime.
It is not an unprimeable number, because it can be changed into a prime (28285021) 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, 280 + ... + 7526.
It is an arithmetic number, because the mean of its divisors is an integer number (4718448).
Almost surely, 228285041 is an apocalyptic number.
It is an amenable number.
28285041 is a deficient number, since it is larger than the sum of its proper divisors (9462543).
28285041 is a wasteful number, since it uses less digits than its factorization.
28285041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8551.
The product of its (nonzero) digits is 5120, while the sum is 30.
The square root of 28285041 is about 5318.3682647970. The cubic root of 28285041 is about 304.6858397332.
The spelling of 28285041 in words is "twenty-eight million, two hundred eighty-five thousand, forty-one".
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