Base | Representation |
---|---|
bin | 1101110010001110011001… |
… | …10010100101111001101101 |
3 | 10222022220012111002110020101 |
4 | 12321013030302211321231 |
5 | 12433122031111204011 |
6 | 144245335324351101 |
7 | 6246020615600515 |
oct | 671071462457155 |
9 | 128286174073211 |
10 | 30313020022381 |
11 | 97277525a8928 |
12 | 3496a490a5491 |
13 | 13bb6758301c5 |
14 | 76b22d78a845 |
15 | 3787a05422c1 |
hex | 1b91ccca5e6d |
30313020022381 has 2 divisors, whose sum is σ = 30313020022382. Its totient is φ = 30313020022380.
The previous prime is 30313020022217. The next prime is 30313020022409. The reversal of 30313020022381 is 18322002031303.
It is an a-pointer prime, because the next prime (30313020022409) can be obtained adding 30313020022381 to its sum of digits (28).
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 19123426365156 + 11189593657225 = 4373034^2 + 3345085^2 .
It is a cyclic number.
It is not a de Polignac number, because 30313020022381 - 229 = 30312483151469 is a prime.
It is a super-2 number, since 2×303130200223812 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30313020022981) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156510011190 + 15156510011191.
It is an arithmetic number, because the mean of its divisors is an integer number (15156510011191).
Almost surely, 230313020022381 is an apocalyptic number.
It is an amenable number.
30313020022381 is a deficient number, since it is larger than the sum of its proper divisors (1).
30313020022381 is an equidigital number, since it uses as much as digits as its factorization.
30313020022381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5184, while the sum is 28.
Adding to 30313020022381 its reverse (18322002031303), we get a palindrome (48635022053684).
The spelling of 30313020022381 in words is "thirty trillion, three hundred thirteen billion, twenty million, twenty-two thousand, three hundred eighty-one".
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