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71164423 = 118577549
BaseRepresentation
bin1000011110111…
…10001000000111
311221220112020101
410033132020013
5121204230143
611021144531
71522613311
oct417361007
9157815211
1071164423
1137196980
121b9bb147
1311988835
1496467b1
1563aab4d
hex43de207

71164423 has 8 divisors (see below), whose sum is σ = 77734800. Its totient is φ = 64610880.

The previous prime is 71164421. The next prime is 71164427. The reversal of 71164423 is 32446117.

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 71164423 - 21 = 71164421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71164391 and 71164400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71164421) 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 in 7 ways as a sum of consecutive naturals, for example, 5653 + ... + 13201.

It is an arithmetic number, because the mean of its divisors is an integer number (9716850).

Almost surely, 271164423 is an apocalyptic number.

71164423 is a deficient number, since it is larger than the sum of its proper divisors (6570377).

71164423 is a wasteful number, since it uses less digits than its factorization.

71164423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8417.

The product of its digits is 4032, while the sum is 28.

The square root of 71164423 is about 8435.9008410483. The cubic root of 71164423 is about 414.4011743698.

The spelling of 71164423 in words is "seventy-one million, one hundred sixty-four thousand, four hundred twenty-three".

Divisors: 1 11 857 7549 9427 83039 6469493 71164423