Base | Representation |
---|---|
bin | 10001000101010101… |
… | …111111001100010100 |
3 | 1202100101002012112010 |
4 | 101011111333030110 |
5 | 300031333322243 |
6 | 12232103424220 |
7 | 1216364100615 |
oct | 210525771424 |
9 | 52311065463 |
10 | 18343260948 |
11 | 78633244a1 |
12 | 367b155070 |
13 | 196439727c |
14 | c60261c0c |
15 | 7255b0433 |
hex | 44557f314 |
18343260948 has 24 divisors (see below), whose sum is σ = 43403774400. Its totient is φ = 6028301440.
The previous prime is 18343260941. The next prime is 18343260977. The reversal of 18343260948 is 84906234381.
It is a junction number, because it is equal to n+sod(n) for n = 18343260897 and 18343260906.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18343260941) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10763973 + ... + 10765676.
It is an arithmetic number, because the mean of its divisors is an integer number (1808490600).
Almost surely, 218343260948 is an apocalyptic number.
It is an amenable number.
18343260948 is an abundant number, since it is smaller than the sum of its proper divisors (25060513452).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18343260948 is a wasteful number, since it uses less digits than its factorization.
18343260948 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21529727 (or 21529725 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 48.
The spelling of 18343260948 in words is "eighteen billion, three hundred forty-three million, two hundred sixty thousand, nine hundred forty-eight".
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