Search a number
-
+
675794681 is a prime number
BaseRepresentation
bin101000010001111…
…100111011111001
31202002121221000122
4220101330323321
52341000412211
6151020343025
722514105612
oct5021747371
91662557018
10675794681
11317517601
1216a3a4a75
13aa015b13
1465a76c09
153e4e06db
hex2847cef9

675794681 has 2 divisors, whose sum is σ = 675794682. Its totient is φ = 675794680.

The previous prime is 675794563. The next prime is 675794683. The reversal of 675794681 is 186497576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523494400 + 152300281 = 22880^2 + 12341^2 .

It is a cyclic number.

It is not a de Polignac number, because 675794681 - 214 = 675778297 is a prime.

It is a super-2 number, since 2×6757946812 = 913396901735783522, which contains 22 as substring.

Together with 675794683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (675794683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337897340 + 337897341.

It is an arithmetic number, because the mean of its divisors is an integer number (337897341).

Almost surely, 2675794681 is an apocalyptic number.

It is an amenable number.

675794681 is a deficient number, since it is larger than the sum of its proper divisors (1).

675794681 is an equidigital number, since it uses as much as digits as its factorization.

675794681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 675794681 is about 25996.0512578353. The cubic root of 675794681 is about 877.5494325824.

The spelling of 675794681 in words is "six hundred seventy-five million, seven hundred ninety-four thousand, six hundred eighty-one".