Base | Representation |
---|---|
bin | 11100001001010001… |
… | …000000001010010000 |
3 | 2220000002200101200222 |
4 | 130021101000022100 |
5 | 443342334114440 |
6 | 21514420132212 |
7 | 2116612441523 |
oct | 341121001220 |
9 | 86002611628 |
10 | 30220223120 |
11 | 118a8589a0a |
12 | 5a34837068 |
13 | 2b07bb0239 |
14 | 16697b2bba |
15 | bbd12a2b5 |
hex | 709440290 |
30220223120 has 20 divisors (see below), whose sum is σ = 70262018940. Its totient is φ = 12088089216.
The previous prime is 30220223101. The next prime is 30220223147. The reversal of 30220223120 is 2132202203.
It can be written as a sum of positive squares in 2 ways, for example, as 4315964416 + 25904258704 = 65696^2 + 160948^2 .
It is a tau number, because it is divible by the number of its divisors (20).
It is a super-3 number, since 3×302202231203 (a number of 32 digits) contains 333 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188876315 + ... + 188876474.
It is an arithmetic number, because the mean of its divisors is an integer number (3513100947).
Almost surely, 230220223120 is an apocalyptic number.
It is an amenable number.
30220223120 is an abundant number, since it is smaller than the sum of its proper divisors (40041795820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30220223120 is a wasteful number, since it uses less digits than its factorization.
30220223120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 377752802 (or 377752796 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 17.
Adding to 30220223120 its reverse (2132202203), we get a palindrome (32352425323).
The spelling of 30220223120 in words is "thirty billion, two hundred twenty million, two hundred twenty-three thousand, one hundred twenty".
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