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12500518108 = 2213240394579
BaseRepresentation
bin10111010010001011…
…01100010011011100
31012021011221010010011
423221011230103130
5201100113034413
65424225253004
7621526436131
oct135105542334
935234833104
1012500518108
115335242301
12250a494164
131242a6b6a0
148682aa588
154d268c33d
hex2e916c4dc

12500518108 has 12 divisors (see below), whose sum is σ = 23558668840. Its totient is φ = 5769469872.

The previous prime is 12500518091. The next prime is 12500518109. The reversal of 12500518108 is 80181500521.

12500518108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12500518108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500518109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120197238 + ... + 120197341.

Almost surely, 212500518108 is an apocalyptic number.

It is an amenable number.

12500518108 is a deficient number, since it is larger than the sum of its proper divisors (11058150732).

12500518108 is a wasteful number, since it uses less digits than its factorization.

12500518108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240394596 (or 240394594 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 31.

The spelling of 12500518108 in words is "twelve billion, five hundred million, five hundred eighteen thousand, one hundred eight".

Divisors: 1 2 4 13 26 52 240394579 480789158 961578316 3125129527 6250259054 12500518108