Base | Representation |
---|---|
bin | 11100000011011110… |
… | …101000010100110011 |
3 | 2212202022222200000101 |
4 | 130003132220110303 |
5 | 443143010212321 |
6 | 21501031133231 |
7 | 2114323253614 |
oct | 340336502463 |
9 | 85668880011 |
10 | 30123132211 |
11 | 118587a5097 |
12 | 5a08214217 |
13 | 2ac0a478b3 |
14 | 165a93bc0b |
15 | bb484c791 |
hex | 7037a8533 |
30123132211 has 2 divisors, whose sum is σ = 30123132212. Its totient is φ = 30123132210.
The previous prime is 30123132203. The next prime is 30123132251. The reversal of 30123132211 is 11223132103.
It is a weak prime.
It is an emirp because it is prime and its reverse (11223132103) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30123132211 - 23 = 30123132203 is a prime.
It is not a weakly prime, because it can be changed into another prime (30123132251) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061566105 + 15061566106.
It is an arithmetic number, because the mean of its divisors is an integer number (15061566106).
Almost surely, 230123132211 is an apocalyptic number.
30123132211 is a deficient number, since it is larger than the sum of its proper divisors (1).
30123132211 is an equidigital number, since it uses as much as digits as its factorization.
30123132211 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 30123132211 its reverse (11223132103), we get a palindrome (41346264314).
The spelling of 30123132211 in words is "thirty billion, one hundred twenty-three million, one hundred thirty-two thousand, two hundred eleven".
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