Base | Representation |
---|---|
bin | 111010000110… |
… | …1110101110101 |
3 | 2010022210200001 |
4 | 1310031311311 |
5 | 30244343042 |
6 | 3004551301 |
7 | 516644254 |
oct | 164156565 |
9 | 63283601 |
10 | 30465397 |
11 | 16219116 |
12 | a252531 |
13 | 6408a81 |
14 | 409079b |
15 | 2a1bbb7 |
hex | 1d0dd75 |
30465397 has 2 divisors, whose sum is σ = 30465398. Its totient is φ = 30465396.
The previous prime is 30465373. The next prime is 30465401. The reversal of 30465397 is 79356403.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 15673681 + 14791716 = 3959^2 + 3846^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30465397 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30465367) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15232698 + 15232699.
It is an arithmetic number, because the mean of its divisors is an integer number (15232699).
Almost surely, 230465397 is an apocalyptic number.
It is an amenable number.
30465397 is a deficient number, since it is larger than the sum of its proper divisors (1).
30465397 is an equidigital number, since it uses as much as digits as its factorization.
30465397 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 68040, while the sum is 37.
The square root of 30465397 is about 5519.5468111069. The cubic root of 30465397 is about 312.3217868142.
The spelling of 30465397 in words is "thirty million, four hundred sixty-five thousand, three hundred ninety-seven".
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