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80692049 is a prime number
BaseRepresentation
bin1001100111101…
…00001101010001
312121211120200102
410303310031101
5131124121144
612001302145
71666604534
oct463641521
9177746612
1080692049
1141604149
1223034955
1313943399
14aa06a1b
15713db4e
hex4cf4351

80692049 has 2 divisors, whose sum is σ = 80692050. Its totient is φ = 80692048.

The previous prime is 80691991. The next prime is 80692093. The reversal of 80692049 is 94029608.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56731024 + 23961025 = 7532^2 + 4895^2 .

It is a cyclic number.

It is not a de Polignac number, because 80692049 - 212 = 80687953 is a prime.

It is a super-2 number, since 2×806920492 = 13022413543636802, which contains 22 as substring.

It is a Chen prime.

It is equal to p4707398 and since 80692049 and 4707398 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (80692099) 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, 40346024 + 40346025.

It is an arithmetic number, because the mean of its divisors is an integer number (40346025).

Almost surely, 280692049 is an apocalyptic number.

It is an amenable number.

80692049 is a deficient number, since it is larger than the sum of its proper divisors (1).

80692049 is an equidigital number, since it uses as much as digits as its factorization.

80692049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 80692049 is about 8982.8753191837. The cubic root of 80692049 is about 432.1258510362.

The spelling of 80692049 in words is "eighty million, six hundred ninety-two thousand, forty-nine".