Base | Representation |
---|---|
bin | 11100001011000111… |
… | …000000101011000101 |
3 | 2220002020220001200011 |
4 | 130023013000223011 |
5 | 443423244030323 |
6 | 21521443150221 |
7 | 2120436413353 |
oct | 341307005305 |
9 | 86066801604 |
10 | 30251158213 |
11 | 11913a98a01 |
12 | 5a43075371 |
13 | 2b11421a23 |
14 | 166d9467d3 |
15 | bc0bdb20d |
hex | 70b1c0ac5 |
30251158213 has 2 divisors, whose sum is σ = 30251158214. Its totient is φ = 30251158212.
The previous prime is 30251158211. The next prime is 30251158243. The reversal of 30251158213 is 31285115203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 26244648004 + 4006510209 = 162002^2 + 63297^2 .
It is a cyclic number.
It is not a de Polignac number, because 30251158213 - 21 = 30251158211 is a prime.
Together with 30251158211, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30251158211) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15125579106 + 15125579107.
It is an arithmetic number, because the mean of its divisors is an integer number (15125579107).
Almost surely, 230251158213 is an apocalyptic number.
It is an amenable number.
30251158213 is a deficient number, since it is larger than the sum of its proper divisors (1).
30251158213 is an equidigital number, since it uses as much as digits as its factorization.
30251158213 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7200, while the sum is 31.
The spelling of 30251158213 in words is "thirty billion, two hundred fifty-one million, one hundred fifty-eight thousand, two hundred thirteen".
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