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71011361 = 435331159
BaseRepresentation
bin1000011101110…
…00110000100001
311221121202021102
410032320300201
5121134330421
611014004145
71521405131
oct416706041
9157552242
1071011361
11370a1983
121b946655
1311933c75
149606ac1
15637a60b
hex43b8c21

71011361 has 8 divisors (see below), whose sum is σ = 74036160. Its totient is φ = 68049072.

The previous prime is 71011351. The next prime is 71011403. The reversal of 71011361 is 16311017.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71011361 - 210 = 71010337 is a prime.

It is a super-2 number, since 2×710113612 = 10085226782144642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71011321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13301 + ... + 17858.

It is an arithmetic number, because the mean of its divisors is an integer number (9254520).

Almost surely, 271011361 is an apocalyptic number.

It is an amenable number.

71011361 is a deficient number, since it is larger than the sum of its proper divisors (3024799).

71011361 is a wasteful number, since it uses less digits than its factorization.

71011361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31255.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 71011361 is about 8426.8238975310. The cubic root of 71011361 is about 414.1038600697.

Adding to 71011361 its reverse (16311017), we get a palindrome (87322378).

The spelling of 71011361 in words is "seventy-one million, eleven thousand, three hundred sixty-one".

Divisors: 1 43 53 2279 31159 1339837 1651427 71011361