Search a number
-
+
830571718961 is a prime number
BaseRepresentation
bin11000001011000011110…
…11101010100100110001
32221101211222012222100002
430011201323222210301
5102102002330001321
61433320454235345
7114002225061005
oct14054173524461
92841758188302
10830571718961
112a027509a736
12114b78955b55
13604269178ca
142c2b26b4705
15169121ee20b
hexc161eea931

830571718961 has 2 divisors, whose sum is σ = 830571718962. Its totient is φ = 830571718960.

The previous prime is 830571718913. The next prime is 830571718967. The reversal of 830571718961 is 169817175038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 828407608561 + 2164110400 = 910169^2 + 46520^2 .

It is a cyclic number.

It is not a de Polignac number, because 830571718961 - 26 = 830571718897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 830571718897 and 830571718906.

It is not a weakly prime, because it can be changed into another prime (830571718967) 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, 415285859480 + 415285859481.

It is an arithmetic number, because the mean of its divisors is an integer number (415285859481).

Almost surely, 2830571718961 is an apocalyptic number.

It is an amenable number.

830571718961 is a deficient number, since it is larger than the sum of its proper divisors (1).

830571718961 is an equidigital number, since it uses as much as digits as its factorization.

830571718961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 830571718961 in words is "eight hundred thirty billion, five hundred seventy-one million, seven hundred eighteen thousand, nine hundred sixty-one".