Base | Representation |
---|---|
bin | 10010101000000110… |
… | …101101011000010100 |
3 | 1220121211220102220000 |
4 | 102220012231120110 |
5 | 311430022401322 |
6 | 13104333411300 |
7 | 1305423616416 |
oct | 225006553024 |
9 | 56554812800 |
10 | 20000200212 |
11 | 8533656493 |
12 | 3a62039b30 |
13 | 1b69747ac5 |
14 | d7a3389b6 |
15 | 7c0caa3ac |
hex | 4a81ad614 |
20000200212 has 30 divisors (see below), whose sum is σ = 52284474858. Its totient is φ = 6666733296.
The previous prime is 20000200163. The next prime is 20000200247. The reversal of 20000200212 is 21200200002.
It can be written as a sum of positive squares in only one way, i.e., 18601140996 + 1399059216 = 136386^2 + 37404^2 .
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 20000200194 and 20000200203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30864183 + ... + 30864830.
Almost surely, 220000200212 is an apocalyptic number.
It is an amenable number.
20000200212 is an abundant number, since it is smaller than the sum of its proper divisors (32284274646).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20000200212 is a wasteful number, since it uses less digits than its factorization.
20000200212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61729029 (or 61729018 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 9.
Adding to 20000200212 its reverse (21200200002), we get a palindrome (41200400214).
The spelling of 20000200212 in words is "twenty billion, two hundred thousand, two hundred twelve".
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