Base | Representation |
---|---|
bin | 111111011111000… |
… | …1000000100111110 |
3 | 12111110101010221101 |
4 | 1332332020010332 |
5 | 13330313341410 |
6 | 551213523314 |
7 | 103534350013 |
oct | 17676100476 |
9 | 5443333841 |
10 | 2130215230 |
11 | 9a34a6260 |
12 | 4b54a353a |
13 | 27c439ab0 |
14 | 162cb370a |
15 | c7034d3a |
hex | 7ef8813e |
2130215230 has 32 divisors (see below), whose sum is σ = 4504737888. Its totient is φ = 715036800.
The previous prime is 2130215183. The next prime is 2130215249. The reversal of 2130215230 is 325120312.
It is a super-2 number, since 2×21302152302 = 9075633852247905800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 2130215198 and 2130215207.
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, 743401 + ... + 746260.
It is an arithmetic number, because the mean of its divisors is an integer number (140773059).
Almost surely, 22130215230 is an apocalyptic number.
2130215230 is an abundant number, since it is smaller than the sum of its proper divisors (2374522658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130215230 is a wasteful number, since it uses less digits than its factorization.
2130215230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1489692.
The product of its (nonzero) digits is 360, while the sum is 19.
The square root of 2130215230 is about 46154.2547334479. The cubic root of 2130215230 is about 1286.6916870606.
Adding to 2130215230 its reverse (325120312), we get a palindrome (2455335542).
The spelling of 2130215230 in words is "two billion, one hundred thirty million, two hundred fifteen thousand, two hundred thirty".
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