Base | Representation |
---|---|
bin | 110001000110… |
… | …001000111111 |
3 | 220012212121100 |
4 | 301012020333 |
5 | 11243321312 |
6 | 1135504143 |
7 | 214252320 |
oct | 61061077 |
9 | 26185540 |
10 | 12870207 |
11 | 72a0639 |
12 | 4388053 |
13 | 288810c |
14 | 19d0447 |
15 | 11e35dc |
hex | c4623f |
12870207 has 48 divisors (see below), whose sum is σ = 22980672. Its totient is φ = 6773760.
The previous prime is 12870203. The next prime is 12870217. The reversal of 12870207 is 70207821.
12870207 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12870207 - 22 = 12870203 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12870203) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65233 + ... + 65429.
It is an arithmetic number, because the mean of its divisors is an integer number (478764).
Almost surely, 212870207 is an apocalyptic number.
12870207 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
12870207 is a deficient number, since it is larger than the sum of its proper divisors (10110465).
12870207 is a wasteful number, since it uses less digits than its factorization.
12870207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 288 (or 285 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 27.
The square root of 12870207 is about 3587.5070731638. The cubic root of 12870207 is about 234.3483197363.
The spelling of 12870207 in words is "twelve million, eight hundred seventy thousand, two hundred seven".
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