Search a number
-
+
212085716879 is a prime number
BaseRepresentation
bin1100010110000101001…
…0110011011110001111
3202021102121200201022002
43011201102303132033
511433322420420004
6241233020542515
721215452564121
oct3054122633617
9667377621262
10212085716879
1181a43949173
123512b0b1a3b
1316ccc16623a
14a39d253211
1557b44c761e
hex31614b378f

212085716879 has 2 divisors, whose sum is σ = 212085716880. Its totient is φ = 212085716878.

The previous prime is 212085716809. The next prime is 212085716903. The reversal of 212085716879 is 978617580212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212085716879 - 216 = 212085651343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212085716809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106042858439 + 106042858440.

It is an arithmetic number, because the mean of its divisors is an integer number (106042858440).

Almost surely, 2212085716879 is an apocalyptic number.

212085716879 is a deficient number, since it is larger than the sum of its proper divisors (1).

212085716879 is an equidigital number, since it uses as much as digits as its factorization.

212085716879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 212085716879 in words is "two hundred twelve billion, eighty-five million, seven hundred sixteen thousand, eight hundred seventy-nine".