Search a number
-
+
243423290443213 is a prime number
BaseRepresentation
bin110111010110010001100110…
…110000011100010111001101
31011220220001001122110211002201
4313112101212300130113031
5223401221344323140323
62221415041004321501
7102162516030133306
oct6726214660342715
91156801048424081
10243423290443213
1170620268472171
1223375093543291
13a5a9943cb68ca
144417a7048d7ad
151d21ee997a8ad
hexdd6466c1c5cd

243423290443213 has 2 divisors, whose sum is σ = 243423290443214. Its totient is φ = 243423290443212.

The previous prime is 243423290443159. The next prime is 243423290443241. The reversal of 243423290443213 is 312344092324342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168310093539844 + 75113196903369 = 12973438^2 + 8666787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-243423290443213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243423290443253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711645221606 + 121711645221607.

It is an arithmetic number, because the mean of its divisors is an integer number (121711645221607).

Almost surely, 2243423290443213 is an apocalyptic number.

It is an amenable number.

243423290443213 is a deficient number, since it is larger than the sum of its proper divisors (1).

243423290443213 is an equidigital number, since it uses as much as digits as its factorization.

243423290443213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 46.

The spelling of 243423290443213 in words is "two hundred forty-three trillion, four hundred twenty-three billion, two hundred ninety million, four hundred forty-three thousand, two hundred thirteen".