Base | Representation |
---|---|
bin | 111001110001… |
… | …0010000110011 |
3 | 2002222201211000 |
4 | 1303202100303 |
5 | 30223140044 |
6 | 3001053043 |
7 | 515301666 |
oct | 163422063 |
9 | 62881730 |
10 | 30286899 |
11 | 16106aa5 |
12 | a187183 |
13 | 6375756 |
14 | 40456dd |
15 | 29d3d69 |
hex | 1ce2433 |
30286899 has 8 divisors (see below), whose sum is σ = 44869520. Its totient is φ = 20191248.
The previous prime is 30286891. The next prime is 30286939. The reversal of 30286899 is 99868203.
It is not a de Polignac number, because 30286899 - 23 = 30286891 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30286891) 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, 560842 + ... + 560895.
It is an arithmetic number, because the mean of its divisors is an integer number (5608690).
Almost surely, 230286899 is an apocalyptic number.
30286899 is a deficient number, since it is larger than the sum of its proper divisors (14582621).
30286899 is a wasteful number, since it uses less digits than its factorization.
30286899 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1121746 (or 1121740 counting only the distinct ones).
The product of its (nonzero) digits is 186624, while the sum is 45.
The square root of 30286899 is about 5503.3534322266. The cubic root of 30286899 is about 311.7106229607.
The spelling of 30286899 in words is "thirty million, two hundred eighty-six thousand, eight hundred ninety-nine".
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