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71194001 is a prime number
BaseRepresentation
bin1000011111001…
…01010110010001
311221222000210212
410033211112101
5121211202001
611021533505
71523065454
oct417452621
9157860725
1071194001
113720711a
121ba14295
1311999138
14965349b
1563b47bb
hex43e5591

71194001 has 2 divisors, whose sum is σ = 71194002. Its totient is φ = 71194000.

The previous prime is 71193989. The next prime is 71194003. The reversal of 71194001 is 10049117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48163600 + 23030401 = 6940^2 + 4799^2 .

It is a cyclic number.

It is not a de Polignac number, because 71194001 - 218 = 70931857 is a prime.

Together with 71194003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71194003) 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, 35597000 + 35597001.

It is an arithmetic number, because the mean of its divisors is an integer number (35597001).

Almost surely, 271194001 is an apocalyptic number.

It is an amenable number.

71194001 is a deficient number, since it is larger than the sum of its proper divisors (1).

71194001 is an equidigital number, since it uses as much as digits as its factorization.

71194001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 71194001 is about 8437.6537615619. The cubic root of 71194001 is about 414.4585788034.

The spelling of 71194001 in words is "seventy-one million, one hundred ninety-four thousand, one".