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78052127 is a prime number
BaseRepresentation
bin1001010011011…
…11101100011111
312102212110101112
410221233230133
5124440132002
611424532235
71635301136
oct451575437
9172773345
1078052127
114007079a
122218107b
131322a8ba
14a51a91d
156cbb852
hex4a6fb1f

78052127 has 2 divisors, whose sum is σ = 78052128. Its totient is φ = 78052126.

The previous prime is 78052109. The next prime is 78052157. The reversal of 78052127 is 72125087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78052127 - 26 = 78052063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78052093 and 78052102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78052157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39026063 + 39026064.

It is an arithmetic number, because the mean of its divisors is an integer number (39026064).

Almost surely, 278052127 is an apocalyptic number.

78052127 is a deficient number, since it is larger than the sum of its proper divisors (1).

78052127 is an equidigital number, since it uses as much as digits as its factorization.

78052127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 78052127 is about 8834.7114836875. The cubic root of 78052127 is about 427.3610268378.

The spelling of 78052127 in words is "seventy-eight million, fifty-two thousand, one hundred twenty-seven".