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80575039 is a prime number
BaseRepresentation
bin1001100110101…
…11101000111111
312121121122011201
410303113220333
5131111400124
611555000331
71665606436
oct463275077
9177548151
1080575039
1141534246
1222b990a7
131390204c
14a9b611d
157119144
hex4cd7a3f

80575039 has 2 divisors, whose sum is σ = 80575040. Its totient is φ = 80575038.

The previous prime is 80575031. The next prime is 80575057. The reversal of 80575039 is 93057508.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80575039 - 23 = 80575031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80574989 and 80575007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80575031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40287519 + 40287520.

It is an arithmetic number, because the mean of its divisors is an integer number (40287520).

Almost surely, 280575039 is an apocalyptic number.

80575039 is a deficient number, since it is larger than the sum of its proper divisors (1).

80575039 is an equidigital number, since it uses as much as digits as its factorization.

80575039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 80575039 is about 8976.3600083776. The cubic root of 80575039 is about 431.9168775114.

The spelling of 80575039 in words is "eighty million, five hundred seventy-five thousand, thirty-nine".