Base | Representation |
---|---|
bin | 100011111010… |
… | …0111010010110 |
3 | 1022102121110112 |
4 | 1013310322112 |
5 | 14310011300 |
6 | 1511323022 |
7 | 316020620 |
oct | 107647226 |
9 | 38377415 |
10 | 18828950 |
11 | a6a0518 |
12 | 6380472 |
13 | 3b933ba |
14 | 2701c10 |
15 | 19bde35 |
hex | 11f4e96 |
18828950 has 48 divisors (see below), whose sum is σ = 41783040. Its totient is φ = 6172320.
The previous prime is 18828947. The next prime is 18828977. The reversal of 18828950 is 5982881.
It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.
It is a junction number, because it is equal to n+sod(n) for n = 18828898 and 18828907.
It is a congruent number.
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, 6881 + ... + 9219.
It is an arithmetic number, because the mean of its divisors is an integer number (870480).
Almost surely, 218828950 is an apocalyptic number.
18828950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18828950 is an abundant number, since it is smaller than the sum of its proper divisors (22954090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18828950 is a wasteful number, since it uses less digits than its factorization.
18828950 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2381 (or 2376 counting only the distinct ones).
The product of its (nonzero) digits is 46080, while the sum is 41.
The square root of 18828950 is about 4339.2338033344. The cubic root of 18828950 is about 266.0369952502.
The spelling of 18828950 in words is "eighteen million, eight hundred twenty-eight thousand, nine hundred fifty".
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