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68371469 is a prime number
BaseRepresentation
bin1000001001101…
…00010000001101
311202122122000122
410010310100031
5120000341334
610441234325
71460101505
oct404642015
9152578018
1068371469
1135659551
121aa929a5
131121b4ba
14911aa05
15600832e
hex413440d

68371469 has 2 divisors, whose sum is σ = 68371470. Its totient is φ = 68371468.

The previous prime is 68371463. The next prime is 68371487. The reversal of 68371469 is 96417386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 11142244 = 7565^2 + 3338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68371469 is a prime.

It is a super-2 number, since 2×683714692 = 9349315546435922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68371463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34185734 + 34185735.

It is an arithmetic number, because the mean of its divisors is an integer number (34185735).

Almost surely, 268371469 is an apocalyptic number.

It is an amenable number.

68371469 is a deficient number, since it is larger than the sum of its proper divisors (1).

68371469 is an equidigital number, since it uses as much as digits as its factorization.

68371469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 44.

The square root of 68371469 is about 8268.7041911052. The cubic root of 68371469 is about 408.9074002818.

The spelling of 68371469 in words is "sixty-eight million, three hundred seventy-one thousand, four hundred sixty-nine".