Base | Representation |
---|---|
bin | 111010111000… |
… | …0011011111010 |
3 | 2011002022122021 |
4 | 1311300123322 |
5 | 30400303432 |
6 | 3021345054 |
7 | 523245535 |
oct | 165603372 |
9 | 64068567 |
10 | 30869242 |
11 | 16474578 |
12 | a40818a |
13 | 651a831 |
14 | 4157a1c |
15 | 2a9b697 |
hex | 1d706fa |
30869242 has 12 divisors (see below), whose sum is σ = 47848698. Its totient is φ = 14935800.
The previous prime is 30869239. The next prime is 30869257. The reversal of 30869242 is 24296803.
It can be written as a sum of positive squares in only one way, i.e., 30791401 + 77841 = 5549^2 + 279^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30869198 and 30869207.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6109 + ... + 9952.
Almost surely, 230869242 is an apocalyptic number.
30869242 is a deficient number, since it is larger than the sum of its proper divisors (16979456).
30869242 is a wasteful number, since it uses less digits than its factorization.
30869242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16125 (or 16094 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 34.
The square root of 30869242 is about 5556.0095392287. The cubic root of 30869242 is about 313.6957646607.
The spelling of 30869242 in words is "thirty million, eight hundred sixty-nine thousand, two hundred forty-two".
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