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68760169 is a prime number
BaseRepresentation
bin1000001100100…
…11001001101001
311210101101012221
410012103021221
5120100311134
610453434041
71463310652
oct406231151
9153341187
1068760169
11358a4595
121b03b921
13113263ba
1491bc529
1560835b4
hex4193269

68760169 has 2 divisors, whose sum is σ = 68760170. Its totient is φ = 68760168.

The previous prime is 68760151. The next prime is 68760199. The reversal of 68760169 is 96106786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38378025 + 30382144 = 6195^2 + 5512^2 .

It is a cyclic number.

It is not a de Polignac number, because 68760169 - 25 = 68760137 is a prime.

It is a super-2 number, since 2×687601692 = 9455921681817122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68760119) 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, 34380084 + 34380085.

It is an arithmetic number, because the mean of its divisors is an integer number (34380085).

Almost surely, 268760169 is an apocalyptic number.

It is an amenable number.

68760169 is a deficient number, since it is larger than the sum of its proper divisors (1).

68760169 is an equidigital number, since it uses as much as digits as its factorization.

68760169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 68760169 is about 8292.1751669872. The cubic root of 68760169 is about 409.6808323118.

The spelling of 68760169 in words is "sixty-eight million, seven hundred sixty thousand, one hundred sixty-nine".