Base | Representation |
---|---|
bin | 111001011110110101… |
… | …1100101000011111001 |
3 | 102210121211202221200200 |
4 | 1302331223211003321 |
5 | 4010301444331410 |
6 | 132412545352413 |
7 | 11626664414460 |
oct | 1627553450371 |
9 | 383554687620 |
10 | 123441402105 |
11 | 483954a949a |
12 | 1bb10338709 |
13 | b843177c88 |
14 | 5d9040d9d7 |
15 | 332718a3c0 |
hex | 1cbdae50f9 |
123441402105 has 48 divisors (see below), whose sum is σ = 250495749504. Its totient is φ = 55053999360.
The previous prime is 123441402067. The next prime is 123441402131. The reversal of 123441402105 is 501204144321.
123441402105 is a `hidden beast` number, since 1 + 2 + 3 + 441 + 4 + 0 + 210 + 5 = 666.
It is not a de Polignac number, because 123441402105 - 214 = 123441385721 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4766079 + ... + 4791908.
It is an arithmetic number, because the mean of its divisors is an integer number (5218661448).
Almost surely, 2123441402105 is an apocalyptic number.
123441402105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
123441402105 is an abundant number, since it is smaller than the sum of its proper divisors (127054347399).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
123441402105 is a wasteful number, since it uses less digits than its factorization.
123441402105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9558046 (or 9558043 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
Adding to 123441402105 its reverse (501204144321), we get a palindrome (624645546426).
The spelling of 123441402105 in words is "one hundred twenty-three billion, four hundred forty-one million, four hundred two thousand, one hundred five".
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