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71108361 = 35292627
BaseRepresentation
bin1000011110100…
…00011100001001
311221210200100000
410033100130021
5121200431421
611020033213
71522261002
oct417203411
9157720300
1071108361
1137158845
121b992809
131196916c
1496301a9
156399226
hex43d0709

71108361 has 12 divisors (see below), whose sum is σ = 106516592. Its totient is φ = 47405412.

The previous prime is 71108357. The next prime is 71108423. The reversal of 71108361 is 16380117.

It is not a de Polignac number, because 71108361 - 22 = 71108357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71108311) 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 11 ways as a sum of consecutive naturals, for example, 146071 + ... + 146556.

Almost surely, 271108361 is an apocalyptic number.

It is an amenable number.

71108361 is a deficient number, since it is larger than the sum of its proper divisors (35408231).

71108361 is an equidigital number, since it uses as much as digits as its factorization.

71108361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292642 (or 292630 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 71108361 is about 8432.5773640092. The cubic root of 71108361 is about 414.2923266200.

Adding to 71108361 its reverse (16380117), we get a palindrome (87488478).

The spelling of 71108361 in words is "seventy-one million, one hundred eight thousand, three hundred sixty-one".

Divisors: 1 3 9 27 81 243 292627 877881 2633643 7900929 23702787 71108361