Base | Representation |
---|---|
bin | 10010101000000110… |
… | …110000000001000100 |
3 | 1220121211220222201000 |
4 | 102220012300001010 |
5 | 311430023223022 |
6 | 13104333533300 |
7 | 1305423663045 |
oct | 225006600104 |
9 | 56554828630 |
10 | 20000211012 |
11 | 8533663611 |
12 | 3a62044230 |
13 | 1b6974c9b2 |
14 | d7a33c8cc |
15 | 7c0cad6ac |
hex | 4a81b0044 |
20000211012 has 48 divisors (see below), whose sum is σ = 52508780800. Its totient is φ = 6582345120.
The previous prime is 20000211001. The next prime is 20000211019. The reversal of 20000211012 is 21011200002.
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 = 20000210985 and 20000211003.
It is not an unprimeable number, because it can be changed into a prime (20000211019) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1163539 + ... + 1180602.
Almost surely, 220000211012 is an apocalyptic number.
It is an amenable number.
20000211012 is an abundant number, since it is smaller than the sum of its proper divisors (32508569788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20000211012 is a wasteful number, since it uses less digits than its factorization.
20000211012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2344233 (or 2344225 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 9.
Adding to 20000211012 its reverse (21011200002), we get a palindrome (41011411014).
The spelling of 20000211012 in words is "twenty billion, two hundred eleven thousand, twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •