Base | Representation |
---|---|
bin | 110001000110… |
… | …000110010111 |
3 | 220012212101010 |
4 | 301012012113 |
5 | 11243320124 |
6 | 1135503303 |
7 | 214251660 |
oct | 61060627 |
9 | 26185333 |
10 | 12870039 |
11 | 72a04a6 |
12 | 4387b33 |
13 | 2888010 |
14 | 19d0367 |
15 | 11e3529 |
hex | c46197 |
12870039 has 16 divisors (see below), whose sum is σ = 21120512. Its totient is φ = 6788448.
The previous prime is 12870031. The next prime is 12870047. The reversal of 12870039 is 93007821.
It is a happy number.
12870039 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12870031) and next prime (12870047).
It is not a de Polignac number, because 12870039 - 23 = 12870031 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12869988 and 12870015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12870031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23299 + ... + 23844.
It is an arithmetic number, because the mean of its divisors is an integer number (1320032).
Almost surely, 212870039 is an apocalyptic number.
12870039 is a deficient number, since it is larger than the sum of its proper divisors (8250473).
12870039 is a wasteful number, since it uses less digits than its factorization.
12870039 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 47166.
The product of its (nonzero) digits is 3024, while the sum is 30.
The square root of 12870039 is about 3587.4836584994. The cubic root of 12870039 is about 234.3473000508.
The spelling of 12870039 in words is "twelve million, eight hundred seventy thousand, thirty-nine".
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