Base | Representation |
---|---|
bin | 1010011100000000… |
… | …0101010100100100 |
3 | 21020021010001012010 |
4 | 2213000011110210 |
5 | 21214231114433 |
6 | 1142004354220 |
7 | 126301023204 |
oct | 24700052444 |
9 | 7207101163 |
10 | 2801816868 |
11 | 1208609534 |
12 | 6623a5970 |
13 | 358615206 |
14 | 1c8178404 |
15 | 115e97e63 |
hex | a7005524 |
2801816868 has 24 divisors (see below), whose sum is σ = 6550901280. Its totient is φ = 932034880.
The previous prime is 2801816851. The next prime is 2801816881. The reversal of 2801816868 is 8686181082.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 231873 + ... + 243656.
It is an arithmetic number, because the mean of its divisors is an integer number (272954220).
Almost surely, 22801816868 is an apocalyptic number.
It is an amenable number.
2801816868 is an abundant number, since it is smaller than the sum of its proper divisors (3749084412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2801816868 is a wasteful number, since it uses less digits than its factorization.
2801816868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 476027 (or 476025 counting only the distinct ones).
The product of its (nonzero) digits is 294912, while the sum is 48.
The square root of 2801816868 is about 52932.1912261338. The cubic root of 2801816868 is about 1409.7645379159.
The spelling of 2801816868 in words is "two billion, eight hundred one million, eight hundred sixteen thousand, eight hundred sixty-eight".
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