Base | Representation |
---|---|
bin | 101110111010… |
… | …111011111110 |
3 | 212010220110200 |
4 | 232322323332 |
5 | 11122100110 |
6 | 1115344330 |
7 | 206356101 |
oct | 56727376 |
9 | 25126420 |
10 | 12300030 |
11 | 6a41216 |
12 | 41520a6 |
13 | 2718732 |
14 | 18c2738 |
15 | 112e6c0 |
hex | bbaefe |
12300030 has 48 divisors (see below), whose sum is σ = 33667920. Its totient is φ = 3106944.
The previous prime is 12300017. The next prime is 12300037. The reversal of 12300030 is 3000321.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12299985 and 12300021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12300037) 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, 1887 + ... + 5306.
It is an arithmetic number, because the mean of its divisors is an integer number (701415).
Almost surely, 212300030 is an apocalyptic number.
12300030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12300030 is an abundant number, since it is smaller than the sum of its proper divisors (21367890).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12300030 is a wasteful number, since it uses less digits than its factorization.
12300030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7225 (or 7222 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 9.
The square root of 12300030 is about 3507.1398603420. The cubic root of 12300030 is about 230.8352116460.
Adding to 12300030 its reverse (3000321), we get a palindrome (15300351).
The spelling of 12300030 in words is "twelve million, three hundred thousand, thirty".
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