Base | Representation |
---|---|
bin | 111010000100… |
… | …0001000101110 |
3 | 2010021121121121 |
4 | 1310020020232 |
5 | 30243121110 |
6 | 3004251154 |
7 | 516516163 |
oct | 164101056 |
9 | 63247547 |
10 | 30442030 |
11 | 16202603 |
12 | a240aba |
13 | 63cb248 |
14 | 408606a |
15 | 2a14cda |
hex | 1d0822e |
30442030 has 16 divisors (see below), whose sum is σ = 54910224. Its totient is φ = 12151360.
The previous prime is 30442001. The next prime is 30442037. The reversal of 30442030 is 3024403.
It is a junction number, because it is equal to n+sod(n) for n = 30441995 and 30442013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30442037) 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, 2289 + ... + 8131.
It is an arithmetic number, because the mean of its divisors is an integer number (3431889).
Almost surely, 230442030 is an apocalyptic number.
30442030 is a deficient number, since it is larger than the sum of its proper divisors (24468194).
30442030 is a wasteful number, since it uses less digits than its factorization.
30442030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6371.
The product of its (nonzero) digits is 288, while the sum is 16.
The square root of 30442030 is about 5517.4296551927. The cubic root of 30442030 is about 312.2419159818.
Adding to 30442030 its reverse (3024403), we get a palindrome (33466433).
The spelling of 30442030 in words is "thirty million, four hundred forty-two thousand, thirty".
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