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68163037 is a prime number
BaseRepresentation
bin1000001000000…
…01010111011101
311202021001002221
410010001113131
5114422204122
610432545341
71455243025
oct404012735
9152231087
1068163037
1135526998
121a9b2251
1311177677
1490a4a85
155eb66c7
hex41015dd

68163037 has 2 divisors, whose sum is σ = 68163038. Its totient is φ = 68163036.

The previous prime is 68163001. The next prime is 68163049. The reversal of 68163037 is 73036186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34916281 + 33246756 = 5909^2 + 5766^2 .

It is a cyclic number.

It is not a de Polignac number, because 68163037 - 27 = 68162909 is a prime.

It is a super-2 number, since 2×681630372 = 9292399226126738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68162993 and 68163011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68163437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34081518 + 34081519.

It is an arithmetic number, because the mean of its divisors is an integer number (34081519).

Almost surely, 268163037 is an apocalyptic number.

It is an amenable number.

68163037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68163037 is an equidigital number, since it uses as much as digits as its factorization.

68163037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 68163037 is about 8256.0909030848. The cubic root of 68163037 is about 408.4914561100.

The spelling of 68163037 in words is "sixty-eight million, one hundred sixty-three thousand, thirty-seven".