Base | Representation |
---|---|
bin | 10010101110101001… |
… | …100111001111101100 |
3 | 1220220111112112021212 |
4 | 102232221213033230 |
5 | 312141130412140 |
6 | 13123255213552 |
7 | 1311226202510 |
oct | 225651471754 |
9 | 56814475255 |
10 | 20110013420 |
11 | 858a63a802 |
12 | 3a929772b8 |
13 | 1b86416133 |
14 | d8ab62140 |
15 | 7ca74c765 |
hex | 4aea673ec |
20110013420 has 48 divisors (see below), whose sum is σ = 48319360320. Its totient is φ = 6886957824.
The previous prime is 20110013401. The next prime is 20110013437. The reversal of 20110013420 is 2431001102.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a junction number, because it is equal to n+sod(n) for n = 20110013395 and 20110013404.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40886 + ... + 204674.
It is an arithmetic number, because the mean of its divisors is an integer number (1006653340).
Almost surely, 220110013420 is an apocalyptic number.
20110013420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20110013420 is an abundant number, since it is smaller than the sum of its proper divisors (28209346900).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20110013420 is a wasteful number, since it uses less digits than its factorization.
20110013420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 164682 (or 164680 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 20110013420 its reverse (2431001102), we get a palindrome (22541014522).
The spelling of 20110013420 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred twenty".
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