Base | Representation |
---|---|
bin | 10110100110000010… |
… | …00010111010000100 |
3 | 1011022101010001211212 |
4 | 23103001002322010 |
5 | 144320312414340 |
6 | 5323400150552 |
7 | 606412003064 |
oct | 132301027204 |
9 | 34271101755 |
10 | 12130201220 |
11 | 5165200795 |
12 | 2426468458 |
13 | 11b4120a77 |
14 | 8310313a4 |
15 | 4aeddda65 |
hex | 2d3042e84 |
12130201220 has 48 divisors (see below), whose sum is σ = 25931162880. Its totient is φ = 4765453056.
The previous prime is 12130201201. The next prime is 12130201241. The reversal of 12130201220 is 2210203121.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 12130201195 and 12130201204.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 331559 + ... + 366321.
It is an arithmetic number, because the mean of its divisors is an integer number (540232560).
Almost surely, 212130201220 is an apocalyptic number.
12130201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12130201220 is an abundant number, since it is smaller than the sum of its proper divisors (13800961660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12130201220 is a wasteful number, since it uses less digits than its factorization.
12130201220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35084 (or 35082 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 14.
Adding to 12130201220 its reverse (2210203121), we get a palindrome (14340404341).
The spelling of 12130201220 in words is "twelve billion, one hundred thirty million, two hundred one thousand, two hundred twenty".
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