Base | Representation |
---|---|
bin | 101101110100… |
… | …101001100010 |
3 | 211121021112201 |
4 | 231310221202 |
5 | 11033342010 |
6 | 1105243414 |
7 | 204046534 |
oct | 55645142 |
9 | 24537481 |
10 | 12012130 |
11 | 6864989 |
12 | 403356a |
13 | 2647690 |
14 | 1849854 |
15 | 10c423a |
hex | b74a62 |
12012130 has 16 divisors (see below), whose sum is σ = 23285304. Its totient is φ = 4435200.
The previous prime is 12012113. The next prime is 12012131. The reversal of 12012130 is 3121021.
12012130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 9941409 + 2070721 = 3153^2 + 1439^2 .
It is a Harshad number since it is a multiple of its sum of digits (10).
It is not an unprimeable number, because it can be changed into a prime (12012131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46071 + ... + 46330.
Almost surely, 212012130 is an apocalyptic number.
12012130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12012130 is a deficient number, since it is larger than the sum of its proper divisors (11273174).
12012130 is a wasteful number, since it uses less digits than its factorization.
12012130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92421.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 12012130 is about 3465.8519876071. The cubic root of 12012130 is about 229.0199635539.
Adding to 12012130 its reverse (3121021), we get a palindrome (15133151).
The spelling of 12012130 in words is "twelve million, twelve thousand, one hundred thirty".
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