| Base | Representation |
|---|---|
| bin | 10110100101000… |
| … | …11001100100000 |
| 3 | 111012102010121000 |
| 4 | 23102203030200 |
| 5 | 341442142003 |
| 6 | 30443432000 |
| 7 | 4456655643 |
| oct | 1322431440 |
| 9 | 435363530 |
| 10 | 189412128 |
| 11 | 97a11154 |
| 12 | 53525600 |
| 13 | 3031aca9 |
| 14 | 1b227a5a |
| 15 | 119671a3 |
| hex | b4a3320 |
189412128 has 96 divisors (see below), whose sum is σ = 566032320. Its totient is φ = 61585920.
The previous prime is 189412127. The next prime is 189412133. The reversal of 189412128 is 821214981.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (96).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a nude number because it is divisible by every one of its digits.
It is a junction number, because it is equal to n+sod(n) for n = 189412092 and 189412101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (189412123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32751 + ... + 38097.
It is an arithmetic number, because the mean of its divisors is an integer number (5896170).
Almost surely, 2189412128 is an apocalyptic number.
189412128 is a gapful number since it is divisible by the number (18) 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 189412128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283016160).
189412128 is an abundant number, since it is smaller than the sum of its proper divisors (376620192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
189412128 is a wasteful number, since it uses less digits than its factorization.
189412128 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5407 (or 5393 counting only the distinct ones).
The product of its digits is 9216, while the sum is 36.
The square root of 189412128 is about 13762.7078730895. The cubic root of 189412128 is about 574.2961803140.
The spelling of 189412128 in words is "one hundred eighty-nine million, four hundred twelve thousand, one hundred twenty-eight".
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