Base | Representation |
---|---|
bin | 1101101110111110000111… |
… | …11110111011010100110101 |
3 | 10221221012120202211211022101 |
4 | 12313133003332323110311 |
5 | 12424304030444024341 |
6 | 144122124032102101 |
7 | 6234651652540132 |
oct | 667370376732465 |
9 | 127835522754271 |
10 | 30201203111221 |
11 | 96942928a354a |
12 | 3479241994931 |
13 | 13b0c65aa1a4c |
14 | 765a6316b589 |
15 | 375908ba0831 |
hex | 1b77c3fbb535 |
30201203111221 has 2 divisors, whose sum is σ = 30201203111222. Its totient is φ = 30201203111220.
The previous prime is 30201203111179. The next prime is 30201203111369. The reversal of 30201203111221 is 12211130210203.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 26547328808100 + 3653874303121 = 5152410^2 + 1911511^2 .
It is a cyclic number.
It is not a de Polignac number, because 30201203111221 - 241 = 28002179855669 is a prime.
It is a super-2 number, since 2×302012031112212 (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 (30201203111621) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15100601555610 + 15100601555611.
It is an arithmetic number, because the mean of its divisors is an integer number (15100601555611).
Almost surely, 230201203111221 is an apocalyptic number.
It is an amenable number.
30201203111221 is a deficient number, since it is larger than the sum of its proper divisors (1).
30201203111221 is an equidigital number, since it uses as much as digits as its factorization.
30201203111221 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 30201203111221 its reverse (12211130210203), we get a palindrome (42412333321424).
The spelling of 30201203111221 in words is "thirty trillion, two hundred one billion, two hundred three million, one hundred eleven thousand, two hundred twenty-one".
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