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17271042271 = 717145134809
BaseRepresentation
bin10000000101011011…
…110011000011011111
31122120122111212000021
4100011123303003133
5240332341323041
611533442213011
71150664302630
oct200533630337
948518455007
1017271042271
11736306475a
123420054167
1318231c2752
14b9bab5887
156b13b5cd1
hex4056f30df

17271042271 has 8 divisors (see below), whose sum is σ = 20899412640. Its totient is φ = 13932941568.

The previous prime is 17271042259. The next prime is 17271042281. The reversal of 17271042271 is 17224017271.

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

It is a de Polignac number, because none of the positive numbers 2k-17271042271 is a prime.

It is a super-2 number, since 2×172710422712 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17271042251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72567286 + ... + 72567523.

It is an arithmetic number, because the mean of its divisors is an integer number (2612426580).

Almost surely, 217271042271 is an apocalyptic number.

17271042271 is a deficient number, since it is larger than the sum of its proper divisors (3628370369).

17271042271 is a wasteful number, since it uses less digits than its factorization.

17271042271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145134833.

The product of its (nonzero) digits is 10976, while the sum is 34.

The spelling of 17271042271 in words is "seventeen billion, two hundred seventy-one million, forty-two thousand, two hundred seventy-one".

Divisors: 1 7 17 119 145134809 1015943663 2467291753 17271042271