Base | Representation |
---|---|
bin | 111010101111… |
… | …0000011001101 |
3 | 2010221111100001 |
4 | 1311132003031 |
5 | 30340401213 |
6 | 3020004301 |
7 | 522513142 |
oct | 165360315 |
9 | 63844301 |
10 | 30793933 |
11 | 16422a35 |
12 | a390691 |
13 | 64c2481 |
14 | 41383c9 |
15 | 2a841dd |
hex | 1d5e0cd |
30793933 has 2 divisors, whose sum is σ = 30793934. Its totient is φ = 30793932.
The previous prime is 30793909. The next prime is 30793981. The reversal of 30793933 is 33939703.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 20820969 + 9972964 = 4563^2 + 3158^2 .
It is a cyclic number.
It is not a de Polignac number, because 30793933 - 217 = 30662861 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30793892 and 30793901.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30793333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15396966 + 15396967.
It is an arithmetic number, because the mean of its divisors is an integer number (15396967).
Almost surely, 230793933 is an apocalyptic number.
It is an amenable number.
30793933 is a deficient number, since it is larger than the sum of its proper divisors (1).
30793933 is an equidigital number, since it uses as much as digits as its factorization.
30793933 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 45927, while the sum is 37.
The square root of 30793933 is about 5549.2281445260. The cubic root of 30793933 is about 313.4404581903.
The spelling of 30793933 in words is "thirty million, seven hundred ninety-three thousand, nine hundred thirty-three".
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