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68207369 is a prime number
BaseRepresentation
bin1000001000011…
…00001100001001
311202100021220212
410010030030021
5114430113434
610433530505
71455516206
oct404141411
9152307825
1068207369
113555722a
121aa13a35
13111918b9
1490b6cad
155ec48ce
hex410c309

68207369 has 2 divisors, whose sum is σ = 68207370. Its totient is φ = 68207368.

The previous prime is 68207353. The next prime is 68207401. The reversal of 68207369 is 96370286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39187600 + 29019769 = 6260^2 + 5387^2 .

It is a cyclic number.

It is not a de Polignac number, because 68207369 - 24 = 68207353 is a prime.

It is a super-2 number, since 2×682073692 = 9304490371804322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68207329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34103684 + 34103685.

It is an arithmetic number, because the mean of its divisors is an integer number (34103685).

Almost surely, 268207369 is an apocalyptic number.

It is an amenable number.

68207369 is a deficient number, since it is larger than the sum of its proper divisors (1).

68207369 is an equidigital number, since it uses as much as digits as its factorization.

68207369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 68207369 is about 8258.7752723997. The cubic root of 68207369 is about 408.5799953901.

The spelling of 68207369 in words is "sixty-eight million, two hundred seven thousand, three hundred sixty-nine".