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5171716885 = 52921229897
BaseRepresentation
bin1001101000100001…
…00010001100010101
3111100102111102211211
410310100202030111
541042424420020
62213103501421
7242105603536
oct46420421425
914312442754
105171716885
112214332495
121003bb7871
136455c250a
14370c0068d
1520407585a
hex134422315

5171716885 has 12 divisors (see below), whose sum is σ = 6427446948. Its totient is φ = 3994702208.

The previous prime is 5171716883. The next prime is 5171716903. The reversal of 5171716885 is 5886171715.

It can be written as a sum of positive squares in 6 ways, for example, as 583415716 + 4588301169 = 24154^2 + 67737^2 .

It is not a de Polignac number, because 5171716885 - 21 = 5171716883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171716883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 610744 + ... + 619153.

It is an arithmetic number, because the mean of its divisors is an integer number (535620579).

Almost surely, 25171716885 is an apocalyptic number.

It is an amenable number.

5171716885 is a deficient number, since it is larger than the sum of its proper divisors (1255730063).

5171716885 is a wasteful number, since it uses less digits than its factorization.

5171716885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229960 (or 1229931 counting only the distinct ones).

The product of its digits is 470400, while the sum is 49.

The square root of 5171716885 is about 71914.6500026246. The cubic root of 5171716885 is about 1729.3314807037.

The spelling of 5171716885 in words is "five billion, one hundred seventy-one million, seven hundred sixteen thousand, eight hundred eighty-five".

Divisors: 1 5 29 145 841 4205 1229897 6149485 35667013 178335065 1034343377 5171716885