| Base | Representation |
|---|---|
| bin | 101110001111… |
| … | …000001110100 |
| 3 | 211210202202120 |
| 4 | 232033001310 |
| 5 | 11100321210 |
| 6 | 1111435540 |
| 7 | 205006542 |
| oct | 56170164 |
| 9 | 24722676 |
| 10 | 12120180 |
| 11 | 6929086 |
| 12 | 4085bb0 |
| 13 | 2684907 |
| 14 | 1876d92 |
| 15 | 10e6270 |
| hex | b8f074 |
12120180 has 48 divisors (see below), whose sum is σ = 34379520. Its totient is φ = 3189888.
The previous prime is 12120179. The next prime is 12120181. The reversal of 12120180 is 8102121.
12120180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12120179) and next prime (12120181).
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12120181) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3462 + ... + 6018.
It is an arithmetic number, because the mean of its divisors is an integer number (716240).
Almost surely, 212120180 is an apocalyptic number.
12120180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12120180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17189760).
12120180 is an abundant number, since it is smaller than the sum of its proper divisors (22259340).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12120180 is a wasteful number, since it uses less digits than its factorization.
12120180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2648 (or 2646 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 15.
The square root of 12120180 is about 3481.4048888344. The cubic root of 12120180 is about 229.7045987086.
It can be divided in two parts, 121 and 20180, that added together give a triangular number (20301 = T201).
The spelling of 12120180 in words is "twelve million, one hundred twenty thousand, one hundred eighty".
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