Base | Representation |
---|---|
bin | 101110010001… |
… | …011011101110 |
3 | 211211021021101 |
4 | 232101123232 |
5 | 11101130110 |
6 | 1111553314 |
7 | 205050343 |
oct | 56213356 |
9 | 24737241 |
10 | 12130030 |
11 | 6935520 |
12 | 408b83a |
13 | 2689243 |
14 | 187a7ca |
15 | 10e913a |
hex | b916ee |
12130030 has 16 divisors (see below), whose sum is σ = 23819184. Its totient is φ = 4410880.
The previous prime is 12130007. The next prime is 12130049. The reversal of 12130030 is 3003121.
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 12129989 and 12130016.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55027 + ... + 55246.
It is an arithmetic number, because the mean of its divisors is an integer number (1488699).
Almost surely, 212130030 is an apocalyptic number.
12130030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12130030 is a deficient number, since it is larger than the sum of its proper divisors (11689154).
12130030 is a wasteful number, since it uses less digits than its factorization.
12130030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110291.
The product of its (nonzero) digits is 18, while the sum is 10.
The square root of 12130030 is about 3482.8192603120. The cubic root of 12130030 is about 229.7668083909.
Adding to 12130030 its reverse (3003121), we get a palindrome (15133151).
The spelling of 12130030 in words is "twelve million, one hundred thirty thousand, thirty".
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