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68783053 is a prime number
BaseRepresentation
bin1000001100110…
…00101111001101
311210102112121111
410012120233031
5120102024203
610454132021
71463434453
oct406305715
9153375544
1068783053
113590a7a9
121b051011
1311333941
1491c69d3
15608a26d
hex4198bcd

68783053 has 2 divisors, whose sum is σ = 68783054. Its totient is φ = 68783052.

The previous prime is 68782981. The next prime is 68783063. The reversal of 68783053 is 35038786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49308484 + 19474569 = 7022^2 + 4413^2 .

It is a cyclic number.

It is not a de Polignac number, because 68783053 - 29 = 68782541 is a prime.

It is a super-2 number, since 2×687830532 = 9462216760001618, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68782997 and 68783015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68783063) 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, 34391526 + 34391527.

It is an arithmetic number, because the mean of its divisors is an integer number (34391527).

Almost surely, 268783053 is an apocalyptic number.

It is an amenable number.

68783053 is a deficient number, since it is larger than the sum of its proper divisors (1).

68783053 is an equidigital number, since it uses as much as digits as its factorization.

68783053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 68783053 is about 8293.5549072759. The cubic root of 68783053 is about 409.7262757541.

The spelling of 68783053 in words is "sixty-eight million, seven hundred eighty-three thousand, fifty-three".