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68062901 is a prime number
BaseRepresentation
bin1000000111010…
…00111010110101
311202001221202012
410003220322311
5114411003101
610430454005
71454345054
oct403507265
9152057665
1068062901
1135468735
121a964305
1311140c0a
14907a39b
155e96bbb
hex40e8eb5

68062901 has 2 divisors, whose sum is σ = 68062902. Its totient is φ = 68062900.

The previous prime is 68062889. The next prime is 68062961. The reversal of 68062901 is 10926086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68046001 + 16900 = 8249^2 + 130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68062901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68062961) 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, 34031450 + 34031451.

It is an arithmetic number, because the mean of its divisors is an integer number (34031451).

Almost surely, 268062901 is an apocalyptic number.

It is an amenable number.

68062901 is a deficient number, since it is larger than the sum of its proper divisors (1).

68062901 is an equidigital number, since it uses as much as digits as its factorization.

68062901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 68062901 is about 8250.0243029945. The cubic root of 68062901 is about 408.2913244395.

Adding to 68062901 its reverse (10926086), we get a palindrome (78988987).

The spelling of 68062901 in words is "sixty-eight million, sixty-two thousand, nine hundred one".