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68401211 is a prime number
BaseRepresentation
bin1000001001110…
…11100000111011
311202201010211012
410010323200323
5120002314321
610442024135
71460254304
oct404734073
9152633735
1068401211
113567992a
121aaa804b
131122bbb8
1491277ab
15601205b
hex413b83b

68401211 has 2 divisors, whose sum is σ = 68401212. Its totient is φ = 68401210.

The previous prime is 68401189. The next prime is 68401247. The reversal of 68401211 is 11210486.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68401211 - 26 = 68401147 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68401811) 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, 34200605 + 34200606.

It is an arithmetic number, because the mean of its divisors is an integer number (34200606).

Almost surely, 268401211 is an apocalyptic number.

68401211 is a deficient number, since it is larger than the sum of its proper divisors (1).

68401211 is an equidigital number, since it uses as much as digits as its factorization.

68401211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 68401211 is about 8270.5024635750. The cubic root of 68401211 is about 408.9666840787.

Adding to 68401211 its reverse (11210486), we get a palindrome (79611697).

The spelling of 68401211 in words is "sixty-eight million, four hundred one thousand, two hundred eleven".