Base | Representation |
---|---|
bin | 1101101111010010001111… |
… | …01110000101010111101100 |
3 | 10221222020110110011100111002 |
4 | 12313221013232011113230 |
5 | 12424443140311114040 |
6 | 144131111440015432 |
7 | 6235513414142423 |
oct | 667510756052754 |
9 | 127866413140432 |
10 | 30212003223020 |
11 | 9698925215383 |
12 | 347b356901578 |
13 | 13b1c97480c48 |
14 | 7663a96882ba |
15 | 375d3be08a15 |
hex | 1b7a47b855ec |
30212003223020 has 24 divisors (see below), whose sum is σ = 63446277059424. Its totient is φ = 12084597424256.
The previous prime is 30212003223007. The next prime is 30212003223037. The reversal of 30212003223020 is 2032230021203.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a junction number, because it is equal to n+sod(n) for n = 30212003222983 and 30212003223001.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11523512 + ... + 13900191.
It is an arithmetic number, because the mean of its divisors is an integer number (2643594877476).
Almost surely, 230212003223020 is an apocalyptic number.
It is an amenable number.
30212003223020 is an abundant number, since it is smaller than the sum of its proper divisors (33234273836404).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30212003223020 is a wasteful number, since it uses less digits than its factorization.
30212003223020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25483129 (or 25483127 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 20.
Adding to 30212003223020 its reverse (2032230021203), we get a palindrome (32244233244223).
The spelling of 30212003223020 in words is "thirty trillion, two hundred twelve billion, three million, two hundred twenty-three thousand, twenty".
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