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68150051 is a prime number
BaseRepresentation
bin1000000111111…
…10001100100011
311202020101021222
410003332030203
5114421300201
610432405255
71455160124
oct403761443
9152211258
1068150051
1135518162
121a9a682b
1311171798
1490a004b
155eb291b
hex40fe323

68150051 has 2 divisors, whose sum is σ = 68150052. Its totient is φ = 68150050.

The previous prime is 68150039. The next prime is 68150057. The reversal of 68150051 is 15005186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68150051 - 26 = 68149987 is a prime.

It is equal to p4015637 and since 68150051 and 4015637 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68150051.

It is not a weakly prime, because it can be changed into another prime (68150057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075025 + 34075026.

It is an arithmetic number, because the mean of its divisors is an integer number (34075026).

Almost surely, 268150051 is an apocalyptic number.

68150051 is a deficient number, since it is larger than the sum of its proper divisors (1).

68150051 is an equidigital number, since it uses as much as digits as its factorization.

68150051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 68150051 is about 8255.3044159498. The cubic root of 68150051 is about 408.4655133743.

The spelling of 68150051 in words is "sixty-eight million, one hundred fifty thousand, fifty-one".