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12500112006 = 232694450667
BaseRepresentation
bin10111010010001000…
…01001001010000110
31012021011011111001100
423221010021022012
5201100012041011
65424212440530
7621523125144
oct135104111206
935234144040
1012500112006
115334a95188
12250a319146
1312429588a5
14868202594
154d260bd56
hex2e9109286

12500112006 has 12 divisors (see below), whose sum is σ = 27083576052. Its totient is φ = 4166703996.

The previous prime is 12500111999. The next prime is 12500112011. The reversal of 12500112006 is 60021100521.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 694450667 = 12500112006 / (1 + 2 + 5 + 0 + 0 + 1 + 1 + 2 + 0 + 0 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 12500112006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 347225316 + ... + 347225351.

It is an arithmetic number, because the mean of its divisors is an integer number (2256964671).

Almost surely, 212500112006 is an apocalyptic number.

12500112006 is an abundant number, since it is smaller than the sum of its proper divisors (14583464046).

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

12500112006 is a wasteful number, since it uses less digits than its factorization.

12500112006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694450675 (or 694450672 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12500112006 its reverse (60021100521), we get a palindrome (72521212527).

The spelling of 12500112006 in words is "twelve billion, five hundred million, one hundred twelve thousand, six".

Divisors: 1 2 3 6 9 18 694450667 1388901334 2083352001 4166704002 6250056003 12500112006