Base | Representation |
---|---|
bin | 111011111100011… |
… | …1101010111011101 |
3 | 12012011211201200200 |
4 | 1313320331113131 |
5 | 13104410421000 |
6 | 531331414113 |
7 | 100562534421 |
oct | 16770752735 |
9 | 5164751620 |
10 | 2011420125 |
11 | 942437790 |
12 | 481754339 |
13 | 260945430 |
14 | 1511ccb81 |
15 | bb8bb500 |
hex | 77e3d5dd |
2011420125 has 96 divisors (see below), whose sum is σ = 4260162816. Its totient is φ = 900144000.
The previous prime is 2011420097. The next prime is 2011420129. The reversal of 2011420125 is 5210241102.
It is not a de Polignac number, because 2011420125 - 222 = 2007225821 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2011420098 and 2011420107.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2011420129) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154624 + ... + 167126.
It is an arithmetic number, because the mean of its divisors is an integer number (44376696).
Almost surely, 22011420125 is an apocalyptic number.
2011420125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2011420125 is an abundant number, since it is smaller than the sum of its proper divisors (2248742691).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2011420125 is a wasteful number, since it uses less digits than its factorization.
2011420125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12548 (or 12535 counting only the distinct ones).
The product of its (nonzero) digits is 160, while the sum is 18.
The square root of 2011420125 is about 44848.8586811303. The cubic root of 2011420125 is about 1262.3145759115.
Adding to 2011420125 its reverse (5210241102), we get a palindrome (7221661227).
The spelling of 2011420125 in words is "two billion, eleven million, four hundred twenty thousand, one hundred twenty-five".
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