Base | Representation |
---|---|
bin | 11100101110010101… |
… | …001000000110001001 |
3 | 2221121102210001011201 |
4 | 130232111020012021 |
5 | 1001131031424233 |
6 | 22100232224201 |
7 | 2141203123516 |
oct | 345625100611 |
9 | 87542701151 |
10 | 30842061193 |
11 | 120975a3079 |
12 | 5b88b3b061 |
13 | 2ba6983a68 |
14 | 16c820230d |
15 | c07a0d77d |
hex | 72e548189 |
30842061193 has 2 divisors, whose sum is σ = 30842061194. Its totient is φ = 30842061192.
The previous prime is 30842061139. The next prime is 30842061203. The reversal of 30842061193 is 39116024803.
Together with previous prime (30842061139) it forms an Ormiston pair, because they use the same digits, order apart.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 27486987264 + 3355073929 = 165792^2 + 57923^2 .
It is a cyclic number.
It is not a de Polignac number, because 30842061193 - 225 = 30808506761 is a prime.
It is not a weakly prime, because it can be changed into another prime (30842061493) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15421030596 + 15421030597.
It is an arithmetic number, because the mean of its divisors is an integer number (15421030597).
Almost surely, 230842061193 is an apocalyptic number.
It is an amenable number.
30842061193 is a deficient number, since it is larger than the sum of its proper divisors (1).
30842061193 is an equidigital number, since it uses as much as digits as its factorization.
30842061193 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 31104, while the sum is 37.
Adding to 30842061193 its reverse (39116024803), we get a palindrome (69958085996).
The spelling of 30842061193 in words is "thirty billion, eight hundred forty-two million, sixty-one thousand, one hundred ninety-three".
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