Base | Representation |
---|---|
bin | 11000000100100011… |
… | …01010100000010101 |
3 | 1020100122001211111000 |
4 | 30002101222200111 |
5 | 202431302234434 |
6 | 5534202333513 |
7 | 635150266050 |
oct | 140221524025 |
9 | 36318054430 |
10 | 12923086869 |
11 | 5531822490 |
12 | 2607aba299 |
13 | 12ac482684 |
14 | 8a8467a97 |
15 | 50980cb99 |
hex | 30246a815 |
12923086869 has 32 divisors (see below), whose sum is σ = 23869486080. Its totient is φ = 6713290800.
The previous prime is 12923086861. The next prime is 12923086871. The reversal of 12923086869 is 96868032921.
It is not a de Polignac number, because 12923086869 - 23 = 12923086861 is a prime.
It is a super-2 number, since 2×129230868692 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12923086861) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3105927 + ... + 3110084.
It is an arithmetic number, because the mean of its divisors is an integer number (745921440).
Almost surely, 212923086869 is an apocalyptic number.
It is an amenable number.
12923086869 is a deficient number, since it is larger than the sum of its proper divisors (10946399211).
12923086869 is a wasteful number, since it uses less digits than its factorization.
12923086869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6216038 (or 6216032 counting only the distinct ones).
The product of its (nonzero) digits is 2239488, while the sum is 54.
The spelling of 12923086869 in words is "twelve billion, nine hundred twenty-three million, eighty-six thousand, eight hundred sixty-nine".
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