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168080831 is a prime number
BaseRepresentation
bin10100000010010…
…11010110111111
3102201021101112222
422001023112333
5321012041311
624402315555
74110443402
oct1201132677
9381241488
10168080831
1186971686
1248358bbb
1328a8c919
1418473d39
15eb51adb
hexa04b5bf

168080831 has 2 divisors, whose sum is σ = 168080832. Its totient is φ = 168080830.

The previous prime is 168080777. The next prime is 168080879. The reversal of 168080831 is 138080861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168080831 - 26 = 168080767 is a prime.

It is a super-2 number, since 2×1680808312 = 56502331499301122, which contains 22 as substring.

It is a Chen prime.

It is equal to p9401669 and since 168080831 and 9401669 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 168080791 and 168080800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168080531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84040415 + 84040416.

It is an arithmetic number, because the mean of its divisors is an integer number (84040416).

Almost surely, 2168080831 is an apocalyptic number.

168080831 is a deficient number, since it is larger than the sum of its proper divisors (1).

168080831 is an equidigital number, since it uses as much as digits as its factorization.

168080831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 168080831 is about 12964.5991453650. The cubic root of 168080831 is about 551.8733157699.

The spelling of 168080831 in words is "one hundred sixty-eight million, eighty thousand, eight hundred thirty-one".