Base | Representation |
---|---|
bin | 1111011111111… |
… | …11001111100000 |
3 | 100001122201100102 |
4 | 13233333033200 |
5 | 231241122240 |
6 | 20522441532 |
7 | 3136103663 |
oct | 757771740 |
9 | 301581312 |
10 | 130020320 |
11 | 67436211 |
12 | 376632a8 |
13 | 20c24b01 |
14 | 133a76da |
15 | b634815 |
hex | 7bff3e0 |
130020320 has 24 divisors (see below), whose sum is σ = 307173384. Its totient is φ = 52008064.
The previous prime is 130020313. The next prime is 130020337. The reversal of 130020320 is 23020031.
It is a super-2 number, since 2×1300203202 = 33810567225804800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406154 + ... + 406473.
It is an arithmetic number, because the mean of its divisors is an integer number (12798891).
Almost surely, 2130020320 is an apocalyptic number.
130020320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130020320 is an abundant number, since it is smaller than the sum of its proper divisors (177153064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130020320 is an equidigital number, since it uses as much as digits as its factorization.
130020320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 812642 (or 812634 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 11.
The square root of 130020320 is about 11402.6453071206. The cubic root of 130020320 is about 506.6060946364.
Adding to 130020320 its reverse (23020031), we get a palindrome (153040351).
The spelling of 130020320 in words is "one hundred thirty million, twenty thousand, three hundred twenty".
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