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71075441 = 271262271
BaseRepresentation
bin1000011110010…
…00011001110001
311221202000011202
410033020121301
5121143403231
611015220545
71522063013
oct417103161
9157660152
1071075441
1137136038
121b977755
1311957198
1496221b3
15638e5cb
hex43c8671

71075441 has 4 divisors (see below), whose sum is σ = 71337984. Its totient is φ = 70812900.

The previous prime is 71075429. The next prime is 71075443. The reversal of 71075441 is 14457017.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71075441 - 210 = 71074417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71075443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130865 + ... + 131406.

It is an arithmetic number, because the mean of its divisors is an integer number (17834496).

Almost surely, 271075441 is an apocalyptic number.

It is an amenable number.

71075441 is a deficient number, since it is larger than the sum of its proper divisors (262543).

71075441 is a wasteful number, since it uses less digits than its factorization.

71075441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262542.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 71075441 is about 8430.6251844095. The cubic root of 71075441 is about 414.2283837943.

The spelling of 71075441 in words is "seventy-one million, seventy-five thousand, four hundred forty-one".

Divisors: 1 271 262271 71075441