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12680172563 = 101332337781
BaseRepresentation
bin10111100111100110…
…00001010000010011
31012201200222111200212
423303303001100103
5201432111010223
65454124034335
7626140455062
oct136363012023
935650874625
1012680172563
115417699363
12255a6929ab
1312710511b6
148840b41d9
154e3328278
hex2f3cc1413

12680172563 has 8 divisors (see below), whose sum is σ = 12809911536. Its totient is φ = 12550516000.

The previous prime is 12680172539. The next prime is 12680172577. The reversal of 12680172563 is 36527108621.

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 12680172563 - 230 = 11606430739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12680172563.

It is not an unprimeable number, because it can be changed into a prime (12680172523) 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, 316733 + ... + 354513.

It is an arithmetic number, because the mean of its divisors is an integer number (1601238942).

Almost surely, 212680172563 is an apocalyptic number.

12680172563 is a deficient number, since it is larger than the sum of its proper divisors (129738973).

12680172563 is a wasteful number, since it uses less digits than its factorization.

12680172563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41205.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 12680172563 in words is "twelve billion, six hundred eighty million, one hundred seventy-two thousand, five hundred sixty-three".

Divisors: 1 101 3323 37781 335623 3815881 125546263 12680172563