Base | Representation |
---|---|
bin | 111010111011… |
… | …0100110000011 |
3 | 2011010121020112 |
4 | 1311312212003 |
5 | 30402110332 |
6 | 3022101535 |
7 | 523412222 |
oct | 165664603 |
9 | 64117215 |
10 | 30894467 |
11 | 1649151a |
12 | a41a8ab |
13 | 6529166 |
14 | 4162cb9 |
15 | 2aa3db2 |
hex | 1d76983 |
30894467 has 2 divisors, whose sum is σ = 30894468. Its totient is φ = 30894466.
The previous prime is 30894433. The next prime is 30894469. The reversal of 30894467 is 76449803.
It is a strong prime.
It is an emirp because it is prime and its reverse (76449803) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30894467 - 220 = 29845891 is a prime.
Together with 30894469, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30894469) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15447233 + 15447234.
It is an arithmetic number, because the mean of its divisors is an integer number (15447234).
Almost surely, 230894467 is an apocalyptic number.
30894467 is a deficient number, since it is larger than the sum of its proper divisors (1).
30894467 is an equidigital number, since it uses as much as digits as its factorization.
30894467 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 145152, while the sum is 41.
The square root of 30894467 is about 5558.2791401656. The cubic root of 30894467 is about 313.7811875687.
The spelling of 30894467 in words is "thirty million, eight hundred ninety-four thousand, four hundred sixty-seven".
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