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12539026512875 = 53175900718359
BaseRepresentation
bin1011011001110111100000…
…1110001001101111101011
31122101201102022120002020202
42312131320032021233223
53120414411241403000
642400203234542415
72432625523534652
oct266357016115753
948351368502222
1012539026512875
113aa4853636025
1214a6192737a0b
136cc56b006715
14314c6bda4199
1516b27ed44dd5
hexb6778389beb

12539026512875 has 16 divisors (see below), whose sum is σ = 16569217154880. Its totient is φ = 9441149372800.

The previous prime is 12539026512799. The next prime is 12539026512877. The reversal of 12539026512875 is 57821562093521.

It is not a de Polignac number, because 12539026512875 - 28 = 12539026512619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12539026512875.

It is not an unprimeable number, because it can be changed into a prime (12539026512877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2950357055 + ... + 2950361304.

It is an arithmetic number, because the mean of its divisors is an integer number (1035576072180).

Almost surely, 212539026512875 is an apocalyptic number.

12539026512875 is a deficient number, since it is larger than the sum of its proper divisors (4030190642005).

12539026512875 is an equidigital number, since it uses as much as digits as its factorization.

12539026512875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900718391 (or 5900718381 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 56.

The spelling of 12539026512875 in words is "twelve trillion, five hundred thirty-nine billion, twenty-six million, five hundred twelve thousand, eight hundred seventy-five".

Divisors: 1 5 17 25 85 125 425 2125 5900718359 29503591795 100312212103 147517958975 501561060515 737589794875 2507805302575 12539026512875