Base | Representation |
---|---|
bin | 11100000011010010… |
… | …111000110111010110 |
3 | 2212202010012021211002 |
4 | 130003102320313112 |
5 | 443141213213410 |
6 | 21500441143302 |
7 | 2114255144120 |
oct | 340322706726 |
9 | 85663167732 |
10 | 30120054230 |
11 | 11856a92602 |
12 | 5a0718ab32 |
13 | 2ac020a8c6 |
14 | 165a37a210 |
15 | bb44407a5 |
hex | 7034b8dd6 |
30120054230 has 64 divisors (see below), whose sum is σ = 63187153920. Its totient is φ = 10122912384.
The previous prime is 30120054163. The next prime is 30120054287. The reversal of 30120054230 is 3245002103.
It is a happy number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5068601 + ... + 5074539.
It is an arithmetic number, because the mean of its divisors is an integer number (987299280).
Almost surely, 230120054230 is an apocalyptic number.
30120054230 is an abundant number, since it is smaller than the sum of its proper divisors (33067099690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30120054230 is a wasteful number, since it uses less digits than its factorization.
30120054230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7373.
The product of its (nonzero) digits is 720, while the sum is 20.
Adding to 30120054230 its reverse (3245002103), we get a palindrome (33365056333).
The spelling of 30120054230 in words is "thirty billion, one hundred twenty million, fifty-four thousand, two hundred thirty".
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