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68167369 is a prime number
BaseRepresentation
bin1000001000000…
…10011011001001
311202021021001101
410010002123021
5114422323434
610433021401
71455261454
oct404023311
9152237041
1068167369
113552a176
121a9b4861
131117962a
1490a649b
155eb7b14
hex41026c9

68167369 has 2 divisors, whose sum is σ = 68167370. Its totient is φ = 68167368.

The previous prime is 68167367. The next prime is 68167387. The reversal of 68167369 is 96376186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 927369 = 8200^2 + 963^2 .

It is a cyclic number.

It is not a de Polignac number, because 68167369 - 21 = 68167367 is a prime.

It is a super-2 number, since 2×681673692 = 9293580392764322, which contains 22 as substring.

Together with 68167367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68167367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34083684 + 34083685.

It is an arithmetic number, because the mean of its divisors is an integer number (34083685).

Almost surely, 268167369 is an apocalyptic number.

It is an amenable number.

68167369 is a deficient number, since it is larger than the sum of its proper divisors (1).

68167369 is an equidigital number, since it uses as much as digits as its factorization.

68167369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 68167369 is about 8256.3532506791. The cubic root of 68167369 is about 408.5001096148.

The spelling of 68167369 in words is "sixty-eight million, one hundred sixty-seven thousand, three hundred sixty-nine".