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80061061 is a prime number
BaseRepresentation
bin1001100010110…
…10001010000101
312120122112010111
410301122022011
5130443423221
611535553021
71661336113
oct461321205
9176575114
1080061061
1141213073
122298b771
1313782112
14a8c0ab3
157066be1
hex4c5a285

80061061 has 2 divisors, whose sum is σ = 80061062. Its totient is φ = 80061060.

The previous prime is 80061031. The next prime is 80061073. The reversal of 80061061 is 16016008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76020961 + 4040100 = 8719^2 + 2010^2 .

It is a cyclic number.

It is not a de Polignac number, because 80061061 - 25 = 80061029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80061011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40030530 + 40030531.

It is an arithmetic number, because the mean of its divisors is an integer number (40030531).

Almost surely, 280061061 is an apocalyptic number.

It is an amenable number.

80061061 is a deficient number, since it is larger than the sum of its proper divisors (1).

80061061 is an equidigital number, since it uses as much as digits as its factorization.

80061061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 80061061 is about 8947.6846725843. The cubic root of 80061061 is about 430.9965367407.

Adding to 80061061 its reverse (16016008), we get a palindrome (96077069).

The spelling of 80061061 in words is "eighty million, sixty-one thousand, sixty-one".