Base | Representation |
---|---|
bin | 10111011100100101… |
… | …01111011110111101 |
3 | 1012111021012202202220 |
4 | 23232102233132331 |
5 | 201234440400320 |
6 | 5441024435553 |
7 | 623636514333 |
oct | 135622573675 |
9 | 35437182686 |
10 | 12587825085 |
11 | 537a554330 |
12 | 2533778bb9 |
13 | 1257b89914 |
14 | 875b15b53 |
15 | 4da185e40 |
hex | 2ee4af7bd |
12587825085 has 32 divisors (see below), whose sum is σ = 22026384000. Its totient is φ = 6087936000.
The previous prime is 12587825039. The next prime is 12587825087. The reversal of 12587825085 is 58052878521.
It is not a de Polignac number, because 12587825085 - 211 = 12587823037 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12587825087) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28960 + ... + 161289.
It is an arithmetic number, because the mean of its divisors is an integer number (688324500).
Almost surely, 212587825085 is an apocalyptic number.
12587825085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12587825085 is a deficient number, since it is larger than the sum of its proper divisors (9438558915).
12587825085 is a wasteful number, since it uses less digits than its factorization.
12587825085 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 190669.
The product of its (nonzero) digits is 1792000, while the sum is 51.
The spelling of 12587825085 in words is "twelve billion, five hundred eighty-seven million, eight hundred twenty-five thousand, eighty-five".
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