Base | Representation |
---|---|
bin | 111001010110… |
… | …0111111001011 |
3 | 2002120122110221 |
4 | 1302230333023 |
5 | 30144144213 |
6 | 2552250511 |
7 | 513402541 |
oct | 162547713 |
9 | 62518427 |
10 | 30068683 |
11 | 15a78057 |
12 | a0a0a37 |
13 | 62ca328 |
14 | 3dc9d91 |
15 | 298e38d |
hex | 1cacfcb |
30068683 has 4 divisors (see below), whose sum is σ = 30079728. Its totient is φ = 30057640.
The previous prime is 30068671. The next prime is 30068693. The reversal of 30068683 is 38686003.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 38686003 = 131 ⋅295313.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30068683 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30068693) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785 + ... + 7957.
It is an arithmetic number, because the mean of its divisors is an integer number (7519932).
Almost surely, 230068683 is an apocalyptic number.
30068683 is a deficient number, since it is larger than the sum of its proper divisors (11045).
30068683 is an equidigital number, since it uses as much as digits as its factorization.
30068683 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11044.
The product of its (nonzero) digits is 20736, while the sum is 34.
The square root of 30068683 is about 5483.4918619434. The cubic root of 30068683 is about 310.9601965857.
The spelling of 30068683 in words is "thirty million, sixty-eight thousand, six hundred eighty-three".
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