Search a number
-
+
317324191 is a prime number
BaseRepresentation
bin10010111010011…
…111101110011111
3211010002201221211
4102322133232133
51122213333231
651253205251
710602132262
oct2272375637
9733081854
10317324191
111531373a8
128a330827
13509852c2
1430202cd9
151ccd1eb1
hex12e9fb9f

317324191 has 2 divisors, whose sum is σ = 317324192. Its totient is φ = 317324190.

The previous prime is 317324167. The next prime is 317324209. The reversal of 317324191 is 191423713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317324191 - 215 = 317291423 is a prime.

It is equal to p17138731 and since 317324191 and 17138731 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317324101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158662095 + 158662096.

It is an arithmetic number, because the mean of its divisors is an integer number (158662096).

Almost surely, 2317324191 is an apocalyptic number.

317324191 is a deficient number, since it is larger than the sum of its proper divisors (1).

317324191 is an equidigital number, since it uses as much as digits as its factorization.

317324191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 317324191 is about 17813.5956785821. The cubic root of 317324191 is about 682.0785527978.

The spelling of 317324191 in words is "three hundred seventeen million, three hundred twenty-four thousand, one hundred ninety-one".