Base | Representation |
---|---|
bin | 11100001011000011… |
… | …000011100001101000 |
3 | 2220002011221101022201 |
4 | 130023003003201220 |
5 | 443423012340240 |
6 | 21521405025544 |
7 | 2120424534346 |
oct | 341303034150 |
9 | 86064841281 |
10 | 30250121320 |
11 | 1191344a971 |
12 | 5a428552b4 |
13 | 2b1114aa93 |
14 | 166d756996 |
15 | bc0a83d9a |
hex | 70b0c3868 |
30250121320 has 32 divisors (see below), whose sum is σ = 68240517120. Its totient is φ = 12068449600.
The previous prime is 30250121311. The next prime is 30250121327. The reversal of 30250121320 is 2312105203.
It is not an unprimeable number, because it can be changed into a prime (30250121327) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 971956 + ... + 1002595.
It is an arithmetic number, because the mean of its divisors is an integer number (2132516160).
Almost surely, 230250121320 is an apocalyptic number.
It is an amenable number.
30250121320 is an abundant number, since it is smaller than the sum of its proper divisors (37990395800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30250121320 is a wasteful number, since it uses less digits than its factorization.
30250121320 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1974945 (or 1974941 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 19.
Adding to 30250121320 its reverse (2312105203), we get a palindrome (32562226523).
The spelling of 30250121320 in words is "thirty billion, two hundred fifty million, one hundred twenty-one thousand, three hundred twenty".
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