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68795669 is a prime number
BaseRepresentation
bin1000001100110…
…11110100010101
311210110011220202
410012123310111
5120102430134
610454310245
71463516315
oct406336425
9153404822
1068795669
1135919228
121b058385
13113395c7
1491cb445
15608dd7e
hex419bd15

68795669 has 2 divisors, whose sum is σ = 68795670. Its totient is φ = 68795668.

The previous prime is 68795659. The next prime is 68795689. The reversal of 68795669 is 96659786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65691025 + 3104644 = 8105^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 68795669 - 24 = 68795653 is a prime.

It is a super-2 number, since 2×687956692 = 9465688146315122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68795659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34397834 + 34397835.

It is an arithmetic number, because the mean of its divisors is an integer number (34397835).

Almost surely, 268795669 is an apocalyptic number.

It is an amenable number.

68795669 is a deficient number, since it is larger than the sum of its proper divisors (1).

68795669 is an equidigital number, since it uses as much as digits as its factorization.

68795669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 56.

The square root of 68795669 is about 8294.3154630144. The cubic root of 68795669 is about 409.7513245148.

The spelling of 68795669 in words is "sixty-eight million, seven hundred ninety-five thousand, six hundred sixty-nine".