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80330069 is a prime number
BaseRepresentation
bin1001100100110…
…11110101010101
312121011012010202
410302123311111
5131031030234
611545430245
71663536311
oct462336525
9177135122
1080330069
1141387196
1222a9b385
13138476b1
14a950b41
1570bb77e
hex4c9bd55

80330069 has 2 divisors, whose sum is σ = 80330070. Its totient is φ = 80330068.

The previous prime is 80330027. The next prime is 80330077. The reversal of 80330069 is 96003308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79887844 + 442225 = 8938^2 + 665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80330069 is a prime.

It is a super-2 number, since 2×803300692 = 12905839971089522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80300069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40165034 + 40165035.

It is an arithmetic number, because the mean of its divisors is an integer number (40165035).

Almost surely, 280330069 is an apocalyptic number.

It is an amenable number.

80330069 is a deficient number, since it is larger than the sum of its proper divisors (1).

80330069 is an equidigital number, since it uses as much as digits as its factorization.

80330069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 80330069 is about 8962.7043351881. The cubic root of 80330069 is about 431.4787183028.

The spelling of 80330069 in words is "eighty million, three hundred thirty thousand, sixty-nine".