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64122671 is a prime number
BaseRepresentation
bin1111010010011…
…0111100101111
311110122202202202
43310212330233
5112403411141
610210212115
71406014364
oct364467457
9143582682
1064122671
1133217348
121958403b
1310391612
14873246b
15596949b
hex3d26f2f

64122671 has 2 divisors, whose sum is σ = 64122672. Its totient is φ = 64122670.

The previous prime is 64122659. The next prime is 64122673. The reversal of 64122671 is 17622146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64122671 - 210 = 64121647 is a prime.

It is a super-2 number, since 2×641226712 = 8223433872348482, which contains 22 as substring.

Together with 64122673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64122673) 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, 32061335 + 32061336.

It is an arithmetic number, because the mean of its divisors is an integer number (32061336).

Almost surely, 264122671 is an apocalyptic number.

64122671 is a deficient number, since it is larger than the sum of its proper divisors (1).

64122671 is an equidigital number, since it uses as much as digits as its factorization.

64122671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 29.

The square root of 64122671 is about 8007.6632671460. The cubic root of 64122671 is about 400.2554014738.

The spelling of 64122671 in words is "sixty-four million, one hundred twenty-two thousand, six hundred seventy-one".