Base | Representation |
---|---|
bin | 11000000000010110… |
… | …11111101011110010 |
3 | 1020021011212221002110 |
4 | 30000023133223302 |
5 | 202343301242000 |
6 | 5530504430150 |
7 | 634242320640 |
oct | 140013375362 |
9 | 36234787073 |
10 | 12887915250 |
11 | 551398a531 |
12 | 25b8178356 |
13 | 12a50b9772 |
14 | 8a3910190 |
15 | 5066b1850 |
hex | 3002dfaf2 |
12887915250 has 64 divisors (see below), whose sum is σ = 36763713792. Its totient is φ = 2945808000.
The previous prime is 12887915233. The next prime is 12887915263. The reversal of 12887915250 is 5251978821.
12887915250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-3 number, since 3×128879152503 (a number of 31 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 12887915250.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 1222171 + ... + 1232670.
It is an arithmetic number, because the mean of its divisors is an integer number (574433028).
Almost surely, 212887915250 is an apocalyptic number.
12887915250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12887915250 is an abundant number, since it is smaller than the sum of its proper divisors (23875798542).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12887915250 is a wasteful number, since it uses less digits than its factorization.
12887915250 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2454868 (or 2454858 counting only the distinct ones).
The product of its (nonzero) digits is 403200, while the sum is 48.
The spelling of 12887915250 in words is "twelve billion, eight hundred eighty-seven million, nine hundred fifteen thousand, two hundred fifty".
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