Base | Representation |
---|---|
bin | 11000111110110111… |
… | …00110101101010100 |
3 | 1021121201110222111002 |
4 | 30133123212231110 |
5 | 204432012411040 |
6 | 10054514402432 |
7 | 653240043155 |
oct | 143733465524 |
9 | 37551428432 |
10 | 13412232020 |
11 | 5762945480 |
12 | 2723890418 |
13 | 1359906a85 |
14 | 9133d592c |
15 | 53772ea15 |
hex | 31f6e6b54 |
13412232020 has 96 divisors (see below), whose sum is σ = 31029264000. Its totient is φ = 4829299200.
The previous prime is 13412232013. The next prime is 13412232037. The reversal of 13412232020 is 2023221431.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 13412231983 and 13412232001.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20290490 + ... + 20291150.
It is an arithmetic number, because the mean of its divisors is an integer number (323221500).
Almost surely, 213412232020 is an apocalyptic number.
13412232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13412232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15514632000).
13412232020 is an abundant number, since it is smaller than the sum of its proper divisors (17617031980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13412232020 is a wasteful number, since it uses less digits than its factorization.
13412232020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1449 (or 1447 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 20.
Adding to 13412232020 its reverse (2023221431), we get a palindrome (15435453451).
The spelling of 13412232020 in words is "thirteen billion, four hundred twelve million, two hundred thirty-two thousand, twenty".
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