Search a number
-
+
70286231513 is a prime number
BaseRepresentation
bin100000101110101100…
…0101100011111011001
320201102100221111200202
41001131120230133121
52122421233402023
652142233511545
75035521052601
oct1013530543731
9221370844622
1070286231513
1127898822043
12117568725b5
136821834504
14358aa43c01
151c65800128
hex105d62c7d9

70286231513 has 2 divisors, whose sum is σ = 70286231514. Its totient is φ = 70286231512.

The previous prime is 70286231423. The next prime is 70286231539. The reversal of 70286231513 is 31513268207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61716471184 + 8569760329 = 248428^2 + 92573^2 .

It is an emirp because it is prime and its reverse (31513268207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70286231513 - 210 = 70286230489 is a prime.

It is not a weakly prime, because it can be changed into another prime (70286231573) 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, 35143115756 + 35143115757.

It is an arithmetic number, because the mean of its divisors is an integer number (35143115757).

Almost surely, 270286231513 is an apocalyptic number.

It is an amenable number.

70286231513 is a deficient number, since it is larger than the sum of its proper divisors (1).

70286231513 is an equidigital number, since it uses as much as digits as its factorization.

70286231513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 70286231513 in words is "seventy billion, two hundred eighty-six million, two hundred thirty-one thousand, five hundred thirteen".