Base | Representation |
---|---|
bin | 11011111100111010… |
… | …111110001100011111 |
3 | 2212110122222112102121 |
4 | 123330322332030133 |
5 | 442431324340221 |
6 | 21442101203411 |
7 | 2111516215255 |
oct | 337472761437 |
9 | 85418875377 |
10 | 30013121311 |
11 | 11801696298 |
12 | 5997400567 |
13 | 2aa400a5a4 |
14 | 164a0a25d5 |
15 | ba9d6ba41 |
hex | 6fcebe31f |
30013121311 has 2 divisors, whose sum is σ = 30013121312. Its totient is φ = 30013121310.
The previous prime is 30013121287. The next prime is 30013121323. The reversal of 30013121311 is 11312131003.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 30013121311 - 219 = 30012597023 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30013121011) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006560655 + 15006560656.
It is an arithmetic number, because the mean of its divisors is an integer number (15006560656).
Almost surely, 230013121311 is an apocalyptic number.
30013121311 is a deficient number, since it is larger than the sum of its proper divisors (1).
30013121311 is an equidigital number, since it uses as much as digits as its factorization.
30013121311 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 54, while the sum is 16.
Adding to 30013121311 its reverse (11312131003), we get a palindrome (41325252314).
The spelling of 30013121311 in words is "thirty billion, thirteen million, one hundred twenty-one thousand, three hundred eleven".
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