Base | Representation |
---|---|
bin | 1111100010011… |
… | …10000111111100 |
3 | 100002021010120002 |
4 | 13301032013330 |
5 | 231331442140 |
6 | 20533413432 |
7 | 3141620654 |
oct | 761160774 |
9 | 302233502 |
10 | 130343420 |
11 | 67636a39 |
12 | 3779a278 |
13 | 21008bac |
14 | 1344d364 |
15 | b69a415 |
hex | 7c4e1fc |
130343420 has 48 divisors (see below), whose sum is σ = 305091360. Its totient is φ = 46485504.
The previous prime is 130343419. The next prime is 130343453. The reversal of 130343420 is 24343031.
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 = 130343392 and 130343401.
It is a congruent number.
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, 3629 + ... + 16548.
It is an arithmetic number, because the mean of its divisors is an integer number (6356070).
Almost surely, 2130343420 is an apocalyptic number.
130343420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130343420 is an abundant number, since it is smaller than the sum of its proper divisors (174747940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130343420 is a wasteful number, since it uses less digits than its factorization.
130343420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20222 (or 20220 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 20.
The square root of 130343420 is about 11416.8042814090. The cubic root of 130343420 is about 507.0253855877.
Adding to 130343420 its reverse (24343031), we get a palindrome (154686451).
The spelling of 130343420 in words is "one hundred thirty million, three hundred forty-three thousand, four hundred twenty".
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