Base | Representation |
---|---|
bin | 101111101101… |
… | …011011101100 |
3 | 212112102012001 |
4 | 233231123230 |
5 | 11200204420 |
6 | 1124022044 |
7 | 211210102 |
oct | 57553354 |
9 | 25472161 |
10 | 12506860 |
11 | 7072653 |
12 | 4231924 |
13 | 278b912 |
14 | 1937c72 |
15 | 1170b0a |
hex | bed6ec |
12506860 has 12 divisors (see below), whose sum is σ = 26264448. Its totient is φ = 5002736.
The previous prime is 12506821. The next prime is 12506869. The reversal of 12506860 is 6860521.
It is not an unprimeable number, because it can be changed into a prime (12506869) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312652 + ... + 312691.
It is an arithmetic number, because the mean of its divisors is an integer number (2188704).
Almost surely, 212506860 is an apocalyptic number.
12506860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12506860 is an abundant number, since it is smaller than the sum of its proper divisors (13757588).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12506860 is a wasteful number, since it uses less digits than its factorization.
12506860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 625352 (or 625350 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 12506860 is about 3536.5039233684. The cubic root of 12506860 is about 232.1218889824.
It can be divided in two parts, 12506 and 860, that added together give a triangular number (13366 = T163).
The spelling of 12506860 in words is "twelve million, five hundred six thousand, eight hundred sixty".
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