Base | Representation |
---|---|
bin | 111001001111… |
… | …0011001010000 |
3 | 2002110121111012 |
4 | 1302132121100 |
5 | 30140241122 |
6 | 2551110052 |
7 | 513033353 |
oct | 162363120 |
9 | 62417435 |
10 | 30008912 |
11 | 15a3715a |
12 | a072328 |
13 | 62a906b |
14 | 3db229a |
15 | 297b7e2 |
hex | 1c9e650 |
30008912 has 10 divisors (see below), whose sum is σ = 58142298. Its totient is φ = 15004448.
The previous prime is 30008897. The next prime is 30008917. The reversal of 30008912 is 21980003.
It can be written as a sum of positive squares in only one way, i.e., 16289296 + 13719616 = 4036^2 + 3704^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30008917) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937763 + ... + 937794.
Almost surely, 230008912 is an apocalyptic number.
It is an amenable number.
30008912 is a deficient number, since it is larger than the sum of its proper divisors (28133386).
30008912 is a wasteful number, since it uses less digits than its factorization.
30008912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1875565 (or 1875559 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 23.
The square root of 30008912 is about 5478.0390652130. The cubic root of 30008912 is about 310.7540160559.
Adding to 30008912 its reverse (21980003), we get a palindrome (51988915).
The spelling of 30008912 in words is "thirty million, eight thousand, nine hundred twelve".
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