Base | Representation |
---|---|
bin | 100011111010… |
… | …1001110101010 |
3 | 1022102200020200 |
4 | 1013311032222 |
5 | 14310032000 |
6 | 1511333030 |
7 | 316024455 |
oct | 107651652 |
9 | 38380220 |
10 | 18830250 |
11 | a6a149a |
12 | 6381176 |
13 | 3b93b7a |
14 | 270249c |
15 | 19be500 |
hex | 11f53aa |
18830250 has 48 divisors (see below), whose sum is σ = 50923080. Its totient is φ = 5020800.
The previous prime is 18830243. The next prime is 18830257. The reversal of 18830250 is 5203881.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (18830243) and next prime (18830257).
It can be written as a sum of positive squares in 4 ways, for example, as 7601049 + 11229201 = 2757^2 + 3351^2 .
It is not an unprimeable number, because it can be changed into a prime (18830257) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1935 + ... + 6434.
Almost surely, 218830250 is an apocalyptic number.
18830250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
18830250 is an abundant number, since it is smaller than the sum of its proper divisors (32092830).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18830250 is a wasteful number, since it uses less digits than its factorization.
18830250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8392 (or 8379 counting only the distinct ones).
The product of its (nonzero) digits is 1920, while the sum is 27.
The square root of 18830250 is about 4339.3835967796. The cubic root of 18830250 is about 266.0431177395.
The spelling of 18830250 in words is "eighteen million, eight hundred thirty thousand, two hundred fifty".
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