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68050121 is a prime number
BaseRepresentation
bin1000000111001…
…01110011001001
311202001022012212
410003211303021
5114410100441
610430314505
71454262566
oct403456311
9152038185
1068050121
113545a077
121a958a35
1311138159
14907586d
155e92eeb
hex40e5cc9

68050121 has 2 divisors, whose sum is σ = 68050122. Its totient is φ = 68050120.

The previous prime is 68050111. The next prime is 68050183. The reversal of 68050121 is 12105086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48372025 + 19678096 = 6955^2 + 4436^2 .

It is a cyclic number.

It is not a de Polignac number, because 68050121 - 26 = 68050057 is a prime.

It is a super-2 number, since 2×680501212 = 9261637936229282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68050111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34025060 + 34025061.

It is an arithmetic number, because the mean of its divisors is an integer number (34025061).

Almost surely, 268050121 is an apocalyptic number.

It is an amenable number.

68050121 is a deficient number, since it is larger than the sum of its proper divisors (1).

68050121 is an equidigital number, since it uses as much as digits as its factorization.

68050121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 68050121 is about 8249.2497234597. The cubic root of 68050121 is about 408.2657682276.

The spelling of 68050121 in words is "sixty-eight million, fifty thousand, one hundred twenty-one".