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80385659 is a prime number
BaseRepresentation
bin1001100101010…
…01011001111011
312121021000101122
410302221121323
5131034320114
611550535455
71664160344
oct462513173
9177230348
1080385659
1141414a32
1222b0758b
1313866aa3
14a9670cb
1570cce8e
hex4ca967b

80385659 has 2 divisors, whose sum is σ = 80385660. Its totient is φ = 80385658.

The previous prime is 80385631. The next prime is 80385689. The reversal of 80385659 is 95658308.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80385659 - 212 = 80381563 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (80385689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40192829 + 40192830.

It is an arithmetic number, because the mean of its divisors is an integer number (40192830).

Almost surely, 280385659 is an apocalyptic number.

80385659 is a deficient number, since it is larger than the sum of its proper divisors (1).

80385659 is an equidigital number, since it uses as much as digits as its factorization.

80385659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 80385659 is about 8965.8049833799. The cubic root of 80385659 is about 431.5782259610.

The spelling of 80385659 in words is "eighty million, three hundred eighty-five thousand, six hundred fifty-nine".