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80297771 is a prime number
BaseRepresentation
bin1001100100100…
…11111100101011
312121002112211112
410302103330223
5131024012041
611545020535
71663343201
oct462237453
9177075745
1080297771
11413649a4
1222a8474b
1313835a98
14a943071
1570b1deb
hex4c93f2b

80297771 has 2 divisors, whose sum is σ = 80297772. Its totient is φ = 80297770.

The previous prime is 80297753. The next prime is 80297773. The reversal of 80297771 is 17779208.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80297771 - 210 = 80296747 is a prime.

Together with 80297773, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (80297773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40148885 + 40148886.

It is an arithmetic number, because the mean of its divisors is an integer number (40148886).

Almost surely, 280297771 is an apocalyptic number.

80297771 is a deficient number, since it is larger than the sum of its proper divisors (1).

80297771 is an equidigital number, since it uses as much as digits as its factorization.

80297771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 41.

The square root of 80297771 is about 8960.9023541159. The cubic root of 80297771 is about 431.4208828913.

The spelling of 80297771 in words is "eighty million, two hundred ninety-seven thousand, seven hundred seventy-one".