Base | Representation |
---|---|
bin | 10010111010000110… |
… | …011111001110100010 |
3 | 1221101220001011121122 |
4 | 102322012133032202 |
5 | 313034321212010 |
6 | 13154321052242 |
7 | 1316051163410 |
oct | 227206371642 |
9 | 57356034548 |
10 | 20302132130 |
11 | 867902a3a5 |
12 | 3b27187082 |
13 | 1bb7171047 |
14 | da84922b0 |
15 | 7dc54b855 |
hex | 4ba19f3a2 |
20302132130 has 32 divisors (see below), whose sum is σ = 43962514560. Its totient is φ = 6594376320.
The previous prime is 20302132121. The next prime is 20302132163. The reversal of 20302132130 is 3123120302.
It is a junction number, because it is equal to n+sod(n) for n = 20302132099 and 20302132108.
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, 7631051 + ... + 7633710.
It is an arithmetic number, because the mean of its divisors is an integer number (1373828580).
Almost surely, 220302132130 is an apocalyptic number.
20302132130 is an abundant number, since it is smaller than the sum of its proper divisors (23660382430).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20302132130 is a wasteful number, since it uses less digits than its factorization.
20302132130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15264794.
The product of its (nonzero) digits is 216, while the sum is 17.
Adding to 20302132130 its reverse (3123120302), we get a palindrome (23425252432).
The spelling of 20302132130 in words is "twenty billion, three hundred two million, one hundred thirty-two thousand, one hundred thirty".
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