Base | Representation |
---|---|
bin | 1001000101100010010… |
… | …11001011001101101101 |
3 | 1002211212110110111210212 |
4 | 10202301023023031231 |
5 | 20103401244021221 |
6 | 355232150512205 |
7 | 31361600264216 |
oct | 4426113131555 |
9 | 1084773414725 |
10 | 312210142061 |
11 | 1104535387a4 |
12 | 50612665665 |
13 | 2359768bb3c |
14 | 1117aa2240d |
15 | 81c45ddb5b |
hex | 48b12cb36d |
312210142061 has 2 divisors, whose sum is σ = 312210142062. Its totient is φ = 312210142060.
The previous prime is 312210142031. The next prime is 312210142073. The reversal of 312210142061 is 160241012213.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 208055489161 + 104154652900 = 456131^2 + 322730^2 .
It is a cyclic number.
It is not a de Polignac number, because 312210142061 - 214 = 312210125677 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (312210142021) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156105071030 + 156105071031.
It is an arithmetic number, because the mean of its divisors is an integer number (156105071031).
Almost surely, 2312210142061 is an apocalyptic number.
It is an amenable number.
312210142061 is a deficient number, since it is larger than the sum of its proper divisors (1).
312210142061 is an equidigital number, since it uses as much as digits as its factorization.
312210142061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 576, while the sum is 23.
Adding to 312210142061 its reverse (160241012213), we get a palindrome (472451154274).
The spelling of 312210142061 in words is "three hundred twelve billion, two hundred ten million, one hundred forty-two thousand, sixty-one".
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