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75678241 is a prime number
BaseRepresentation
bin1001000001011…
…00001000100001
312021101212000211
410200230020201
5123333200431
611302014121
71606153162
oct440541041
9167355024
1075678241
113979a201
1221417341
13128a9232
14a09d769
15699d2b1
hex482c221

75678241 has 2 divisors, whose sum is σ = 75678242. Its totient is φ = 75678240.

The previous prime is 75678233. The next prime is 75678269. The reversal of 75678241 is 14287657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71757841 + 3920400 = 8471^2 + 1980^2 .

It is an emirp because it is prime and its reverse (14287657) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75678241 - 23 = 75678233 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75678194 and 75678203.

It is not a weakly prime, because it can be changed into another prime (75678641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37839120 + 37839121.

It is an arithmetic number, because the mean of its divisors is an integer number (37839121).

Almost surely, 275678241 is an apocalyptic number.

It is an amenable number.

75678241 is a deficient number, since it is larger than the sum of its proper divisors (1).

75678241 is an equidigital number, since it uses as much as digits as its factorization.

75678241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 75678241 is about 8699.3241691525. The cubic root of 75678241 is about 422.9837433929.

The spelling of 75678241 in words is "seventy-five million, six hundred seventy-eight thousand, two hundred forty-one".