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71024241 = 323674747
BaseRepresentation
bin1000011101110…
…11111001110001
311221122101221110
410032323321301
5121140233431
611014143533
71521460521
oct416737161
9157571843
1071024241
1137100622
121b951ba9
1311939aa2
14960b681
15637e346
hex43bbe71

71024241 has 4 divisors (see below), whose sum is σ = 94698992. Its totient is φ = 47349492.

The previous prime is 71024237. The next prime is 71024243. The reversal of 71024241 is 14242017.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14242017 = 34747339.

It is not a de Polignac number, because 71024241 - 22 = 71024237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71024243) 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, 11837371 + ... + 11837376.

It is an arithmetic number, because the mean of its divisors is an integer number (23674748).

Almost surely, 271024241 is an apocalyptic number.

It is an amenable number.

71024241 is a deficient number, since it is larger than the sum of its proper divisors (23674751).

71024241 is a wasteful number, since it uses less digits than its factorization.

71024241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23674750.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 71024241 is about 8427.5880891273. The cubic root of 71024241 is about 414.1288951965.

Adding to 71024241 its reverse (14242017), we get a palindrome (85266258).

The spelling of 71024241 in words is "seventy-one million, twenty-four thousand, two hundred forty-one".

Divisors: 1 3 23674747 71024241