Search a number
-
+
12853585837 is a prime number
BaseRepresentation
bin10111111100010001…
…00010011110101101
31020011210021210222201
423332020202132231
5202311004221322
65523240541501
7633344451121
oct137610423655
936153253881
1012853585837
1154a6572314
1225a8781891
13129ac59cc1
1489d135581
1550367ed27
hex2fe2227ad

12853585837 has 2 divisors, whose sum is σ = 12853585838. Its totient is φ = 12853585836.

The previous prime is 12853585783. The next prime is 12853585907. The reversal of 12853585837 is 73858535821.

Together with previous prime (12853585783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12505054276 + 348531561 = 111826^2 + 18669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12853585837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12853585337) 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, 6426792918 + 6426792919.

It is an arithmetic number, because the mean of its divisors is an integer number (6426792919).

Almost surely, 212853585837 is an apocalyptic number.

It is an amenable number.

12853585837 is a deficient number, since it is larger than the sum of its proper divisors (1).

12853585837 is an equidigital number, since it uses as much as digits as its factorization.

12853585837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064000, while the sum is 55.

The spelling of 12853585837 in words is "twelve billion, eight hundred fifty-three million, five hundred eighty-five thousand, eight hundred thirty-seven".