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1068108869 is a prime number
BaseRepresentation
bin111111101010100…
…000110001000101
32202102211112220202
4333222200301011
54141413440434
6253553140245
735316530012
oct7752406105
92672745822
101068108869
114a8a13003
1225985a685
13140395ca9
14a1bda709
1563b86a7e
hex3faa0c45

1068108869 has 2 divisors, whose sum is σ = 1068108870. Its totient is φ = 1068108868.

The previous prime is 1068108851. The next prime is 1068108871. The reversal of 1068108869 is 9688018601.

1068108869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638168644 + 429940225 = 25262^2 + 20735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1068108869 is a prime.

It is a super-2 number, since 2×10681088692 = 2281713112072918322, which contains 22 as substring.

Together with 1068108871, 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 (1068108829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534054434 + 534054435.

It is an arithmetic number, because the mean of its divisors is an integer number (534054435).

Almost surely, 21068108869 is an apocalyptic number.

It is an amenable number.

1068108869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068108869 is an equidigital number, since it uses as much as digits as its factorization.

1068108869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 47.

The square root of 1068108869 is about 32681.9349029399. The cubic root of 1068108869 is about 1022.2061913317.

The spelling of 1068108869 in words is "one billion, sixty-eight million, one hundred eight thousand, eight hundred sixty-nine".