Search a number
-
+
12310013 is a prime number
BaseRepresentation
bin101110111101…
…010111111101
3212011102011102
4232331113331
511122410023
61115502445
7206430152
oct56752775
925142142
1012310013
116a48771
124157a25
132720141
1418c6229
151132628
hexbbd5fd

12310013 has 2 divisors, whose sum is σ = 12310014. Its totient is φ = 12310012.

The previous prime is 12309961. The next prime is 12310019. The reversal of 12310013 is 31001321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7991929 + 4318084 = 2827^2 + 2078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12310013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12309976 and 12310003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12310019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155006 + 6155007.

It is an arithmetic number, because the mean of its divisors is an integer number (6155007).

Almost surely, 212310013 is an apocalyptic number.

It is an amenable number.

12310013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310013 is an equidigital number, since it uses as much as digits as its factorization.

12310013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12310013 is about 3508.5628111807. The cubic root of 12310013 is about 230.8976452269.

Adding to 12310013 its reverse (31001321), we get a palindrome (43311334).

The spelling of 12310013 in words is "twelve million, three hundred ten thousand, thirteen".