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71057083 is a prime number
BaseRepresentation
bin1000011110000…
…11111010111011
311221201001222211
410033003322323
5121142311313
611014555551
71521655336
oct417037273
9157631884
1071057083
1137123269
121b968bb7
131194ba16
14961961d
156388e3d
hex43c3ebb

71057083 has 2 divisors, whose sum is σ = 71057084. Its totient is φ = 71057082.

The previous prime is 71057081. The next prime is 71057087. The reversal of 71057083 is 38075017.

It is a weak prime.

It is an emirp because it is prime and its reverse (38075017) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71057083 - 21 = 71057081 is a prime.

Together with 71057081, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71057081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35528541 + 35528542.

It is an arithmetic number, because the mean of its divisors is an integer number (35528542).

Almost surely, 271057083 is an apocalyptic number.

71057083 is a deficient number, since it is larger than the sum of its proper divisors (1).

71057083 is an equidigital number, since it uses as much as digits as its factorization.

71057083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 71057083 is about 8429.5363454937. The cubic root of 71057083 is about 414.1927171872.

The spelling of 71057083 in words is "seventy-one million, fifty-seven thousand, eighty-three".