Base | Representation |
---|---|
bin | 111001100101… |
… | …1111011001001 |
3 | 2002211002022012 |
4 | 1303023323021 |
5 | 30212223101 |
6 | 2555105305 |
7 | 514441145 |
oct | 163137311 |
9 | 62732265 |
10 | 30195401 |
11 | 16054285 |
12 | a142235 |
13 | 6342c02 |
14 | 4020225 |
15 | 29b6bbb |
hex | 1ccbec9 |
30195401 has 2 divisors, whose sum is σ = 30195402. Its totient is φ = 30195400.
The previous prime is 30195397. The next prime is 30195413. The reversal of 30195401 is 10459103.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 28090000 + 2105401 = 5300^2 + 1451^2 .
It is an emirp because it is prime and its reverse (10459103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30195401 - 22 = 30195397 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30192401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15097700 + 15097701.
It is an arithmetic number, because the mean of its divisors is an integer number (15097701).
Almost surely, 230195401 is an apocalyptic number.
It is an amenable number.
30195401 is a deficient number, since it is larger than the sum of its proper divisors (1).
30195401 is an equidigital number, since it uses as much as digits as its factorization.
30195401 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 540, while the sum is 23.
The square root of 30195401 is about 5495.0342128143. The cubic root of 30195401 is about 311.3964093483.
The spelling of 30195401 in words is "thirty million, one hundred ninety-five thousand, four hundred one".
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