Base | Representation |
---|---|
bin | 100011011111… |
… | …0111110101100 |
3 | 1022000101102211 |
4 | 1012332332230 |
5 | 14230424134 |
6 | 1502500204 |
7 | 314110600 |
oct | 106767654 |
9 | 38011384 |
10 | 18608044 |
11 | a55a554 |
12 | 6294664 |
13 | 3b169a0 |
14 | 2685500 |
15 | 1978764 |
hex | 11befac |
18608044 has 72 divisors (see below), whose sum is σ = 41783280. Its totient is φ = 7185024.
The previous prime is 18608027. The next prime is 18608089. The reversal of 18608044 is 44080681.
It is a junction number, because it is equal to n+sod(n) for n = 18607997 and 18608015.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170662 + ... + 170770.
Almost surely, 218608044 is an apocalyptic number.
18608044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18608044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20891640).
18608044 is an abundant number, since it is smaller than the sum of its proper divisors (23175236).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18608044 is a wasteful number, since it uses less digits than its factorization.
18608044 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 207 (or 198 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 31.
The square root of 18608044 is about 4313.7042086819. The cubic root of 18608044 is about 264.9924953375.
The spelling of 18608044 in words is "eighteen million, six hundred eight thousand, forty-four".
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