Base | Representation |
---|---|
bin | 1111010010010… |
… | …11110111111000 |
3 | 22221022010011022 |
4 | 13221023313320 |
5 | 230312041143 |
6 | 20420322012 |
7 | 3114665642 |
oct | 751136770 |
9 | 287263138 |
10 | 128237048 |
11 | 66428435 |
12 | 36b43308 |
13 | 2074c214 |
14 | 13061892 |
15 | b3d1268 |
hex | 7a4bdf8 |
128237048 has 16 divisors (see below), whose sum is σ = 240570000. Its totient is φ = 64085056.
The previous prime is 128237047. The next prime is 128237077. The reversal of 128237048 is 840732821.
It is a super-4 number, since 4×1282370484 (a number of 34 digits) contains 4444 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 128236999 and 128237017.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (128237041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21053 + ... + 26451.
It is an arithmetic number, because the mean of its divisors is an integer number (15035625).
Almost surely, 2128237048 is an apocalyptic number.
It is an amenable number.
128237048 is a deficient number, since it is larger than the sum of its proper divisors (112332952).
128237048 is a wasteful number, since it uses less digits than its factorization.
128237048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8374 (or 8370 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 35.
The square root of 128237048 is about 11324.1797936981. The cubic root of 128237048 is about 504.2793341109.
Adding to 128237048 its reverse (840732821), we get a palindrome (968969869).
The spelling of 128237048 in words is "one hundred twenty-eight million, two hundred thirty-seven thousand, forty-eight".
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