Base | Representation |
---|---|
bin | 1110110011000… |
… | …00110010000000 |
3 | 22122120101010120 |
4 | 13121200302000 |
5 | 223234102014 |
6 | 20152300240 |
7 | 3035034222 |
oct | 731406200 |
9 | 278511116 |
10 | 124128384 |
11 | 64081546 |
12 | 356a1680 |
13 | 1c941063 |
14 | 126b2412 |
15 | ad6dba9 |
hex | 7660c80 |
124128384 has 32 divisors (see below), whose sum is σ = 329717040. Its totient is φ = 41376000.
The previous prime is 124128383. The next prime is 124128413. The reversal of 124128384 is 483821421.
It is a tau number, because it is divible by the number of its divisors (32).
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (124128383) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161242 + ... + 162009.
Almost surely, 2124128384 is an apocalyptic number.
It is an amenable number.
124128384 is an abundant number, since it is smaller than the sum of its proper divisors (205588656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
124128384 is an equidigital number, since it uses as much as digits as its factorization.
124128384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 323268 (or 323256 counting only the distinct ones).
The product of its digits is 12288, while the sum is 33.
The square root of 124128384 is about 11141.2918461012. The cubic root of 124128384 is about 498.8351336134.
The spelling of 124128384 in words is "one hundred twenty-four million, one hundred twenty-eight thousand, three hundred eighty-four".
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