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71034261 = 323678087
BaseRepresentation
bin1000011101111…
…10010110010101
311221122220200120
410032332112111
5121141044021
611014302153
71521531654
oct416762625
9157586616
1071034261
1137108101
121b957959
131194150c
14961119b
1563822c6
hex43be595

71034261 has 4 divisors (see below), whose sum is σ = 94712352. Its totient is φ = 47356172.

The previous prime is 71034251. The next prime is 71034277. The reversal of 71034261 is 16243017.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-71034261 is a prime.

It is a super-2 number, since 2×710342612 = 10091732471632242, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71034241) 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, 11839041 + ... + 11839046.

It is an arithmetic number, because the mean of its divisors is an integer number (23678088).

Almost surely, 271034261 is an apocalyptic number.

It is an amenable number.

71034261 is a deficient number, since it is larger than the sum of its proper divisors (23678091).

71034261 is a wasteful number, since it uses less digits than its factorization.

71034261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23678090.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 71034261 is about 8428.1825442974. The cubic root of 71034261 is about 414.1483691881.

Adding to 71034261 its reverse (16243017), we get a palindrome (87277278).

The spelling of 71034261 in words is "seventy-one million, thirty-four thousand, two hundred sixty-one".

Divisors: 1 3 23678087 71034261