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12671517168 = 2432331926513
BaseRepresentation
bin10111100110100100…
…00000000111110000
31012201002200202201200
423303102000013300
5201422402022133
65453214331200
7626004055512
oct136322000760
935632622650
1012671517168
115412817442
1225577b9b00
13126c31066b
14882c9dbb2
154e26b8913
hex2f34801f0

12671517168 has 60 divisors (see below), whose sum is σ = 35474671440. Its totient is φ = 4222407168.

The previous prime is 12671517139. The next prime is 12671517179. The reversal of 12671517168 is 86171517621.

12671517168 is a `hidden beast` number, since 1 + 2 + 6 + 71 + 517 + 1 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464680 + ... + 491192.

It is an arithmetic number, because the mean of its divisors is an integer number (591244524).

Almost surely, 212671517168 is an apocalyptic number.

12671517168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12671517168 is an abundant number, since it is smaller than the sum of its proper divisors (22803154272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12671517168 is a wasteful number, since it uses less digits than its factorization.

12671517168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29846 (or 29837 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The spelling of 12671517168 in words is "twelve billion, six hundred seventy-one million, five hundred seventeen thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 3319 6638 9957 13276 19914 26513 26552 29871 39828 53026 53104 59742 79539 79656 106052 119484 159078 159312 212104 238617 238968 318156 424208 477234 477936 636312 954468 1272624 1908936 3817872 87996647 175993294 263989941 351986588 527979882 703973176 791969823 1055959764 1407946352 1583939646 2111919528 3167879292 4223839056 6335758584 12671517168