Base | Representation |
---|---|
bin | 11100001111010101… |
… | …101101010101111101 |
3 | 2220021012102022000202 |
4 | 130033111231111331 |
5 | 444044430320221 |
6 | 21532500133245 |
7 | 2122260524252 |
oct | 341725552575 |
9 | 86235368022 |
10 | 30322120061 |
11 | 11950056662 |
12 | 5a62997225 |
13 | 2b2303929c |
14 | 1679139429 |
15 | bc7056d0b |
hex | 70f56d57d |
30322120061 has 2 divisors, whose sum is σ = 30322120062. Its totient is φ = 30322120060.
The previous prime is 30322120043. The next prime is 30322120067. The reversal of 30322120061 is 16002122303.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23840904025 + 6481216036 = 154405^2 + 80506^2 .
It is a cyclic number.
It is not a de Polignac number, because 30322120061 - 214 = 30322103677 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30322120067) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15161060030 + 15161060031.
It is an arithmetic number, because the mean of its divisors is an integer number (15161060031).
Almost surely, 230322120061 is an apocalyptic number.
It is an amenable number.
30322120061 is a deficient number, since it is larger than the sum of its proper divisors (1).
30322120061 is an equidigital number, since it uses as much as digits as its factorization.
30322120061 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 30322120061 its reverse (16002122303), we get a palindrome (46324242364).
The spelling of 30322120061 in words is "thirty billion, three hundred twenty-two million, one hundred twenty thousand, sixty-one".
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