Search a number
-
+
312210142061 is a prime number
BaseRepresentation
bin1001000101100010010…
…11001011001101101101
31002211212110110111210212
410202301023023031231
520103401244021221
6355232150512205
731361600264216
oct4426113131555
91084773414725
10312210142061
111104535387a4
1250612665665
132359768bb3c
141117aa2240d
1581c45ddb5b
hex48b12cb36d

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".