Base | Representation |
---|---|
bin | 100110010011… |
… | …0010111110001 |
3 | 1101210011201220 |
4 | 1030212113301 |
5 | 20120030423 |
6 | 1554215253 |
7 | 332451414 |
oct | 114462761 |
9 | 41704656 |
10 | 20080113 |
11 | 10375539 |
12 | 6884529 |
13 | 4210a31 |
14 | 2949b7b |
15 | 1b699e3 |
hex | 13265f1 |
20080113 has 8 divisors (see below), whose sum is σ = 27038976. Its totient is φ = 13254000.
The previous prime is 20080103. The next prime is 20080117. The reversal of 20080113 is 31108002.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20080113 - 210 = 20079089 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20080092 and 20080101.
It is not an unprimeable number, because it can be changed into a prime (20080117) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32833 + ... + 33438.
It is an arithmetic number, because the mean of its divisors is an integer number (3379872).
Almost surely, 220080113 is an apocalyptic number.
It is an amenable number.
20080113 is a deficient number, since it is larger than the sum of its proper divisors (6958863).
20080113 is a wasteful number, since it uses less digits than its factorization.
20080113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66375.
The product of its (nonzero) digits is 48, while the sum is 15.
The square root of 20080113 is about 4481.0839090559. The cubic root of 20080113 is about 271.8037123704.
Adding to 20080113 its reverse (31108002), we get a palindrome (51188115).
The spelling of 20080113 in words is "twenty million, eighty thousand, one hundred thirteen".
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