Base | Representation |
---|---|
bin | 10010101000110011… |
… | …101110101110100100 |
3 | 1220122200010001012010 |
4 | 102220303232232210 |
5 | 311441033032322 |
6 | 13105434354220 |
7 | 1305626132526 |
oct | 225063565644 |
9 | 56580101163 |
10 | 20012002212 |
11 | 853a287504 |
12 | 3a65b8b970 |
13 | 1b6c01a937 |
14 | d7bb2ba16 |
15 | 7c1d3c20c |
hex | 4a8ceeba4 |
20012002212 has 24 divisors (see below), whose sum is σ = 46700938816. Its totient is φ = 6669772128.
The previous prime is 20012002181. The next prime is 20012002249. The reversal of 20012002212 is 21220021002.
It is a Harshad number since it is a multiple of its sum of digits (12).
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, 15448 + ... + 200655.
Almost surely, 220012002212 is an apocalyptic number.
It is an amenable number.
20012002212 is an abundant number, since it is smaller than the sum of its proper divisors (26688936604).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20012002212 is a wasteful number, since it uses less digits than its factorization.
20012002212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223827 (or 223825 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 20012002212 its reverse (21220021002), we get a palindrome (41232023214).
The spelling of 20012002212 in words is "twenty billion, twelve million, two thousand, two hundred twelve".
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