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71080852 = 2217770213
BaseRepresentation
bin1000011110010…
…01101110010100
311221202021121011
410033021232110
5121144041402
611015302004
71522114543
oct417115624
9157667534
1071080852
113713a107
121b97a904
131195979b
14962415a
156390ed7
hex43c9b94

71080852 has 6 divisors (see below), whose sum is σ = 124391498. Its totient is φ = 35540424.

The previous prime is 71080817. The next prime is 71080853. The reversal of 71080852 is 25808017.

It can be written as a sum of positive squares in only one way, i.e., 39765636 + 31315216 = 6306^2 + 5596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71080853) 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, 8885103 + ... + 8885110.

Almost surely, 271080852 is an apocalyptic number.

It is an amenable number.

71080852 is a deficient number, since it is larger than the sum of its proper divisors (53310646).

71080852 is a wasteful number, since it uses less digits than its factorization.

71080852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17770217 (or 17770215 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 71080852 is about 8430.9460916317. The cubic root of 71080852 is about 414.2388953150.

Adding to 71080852 its reverse (25808017), we get a palindrome (96888869).

The spelling of 71080852 in words is "seventy-one million, eighty thousand, eight hundred fifty-two".

Divisors: 1 2 4 17770213 35540426 71080852