Base | Representation |
---|---|
bin | 10010101001010011… |
… | …000011000100101100 |
3 | 1220200020120010220210 |
4 | 102221103003010230 |
5 | 312000133241022 |
6 | 13110330342420 |
7 | 1306055665023 |
oct | 225123030454 |
9 | 56606503823 |
10 | 20020212012 |
11 | 8543984669 |
12 | 3a6888aa10 |
13 | 1b709336c8 |
14 | d7cc678ba |
15 | 7c290ea0c |
hex | 4a94c312c |
20020212012 has 12 divisors (see below), whose sum is σ = 46713828056. Its totient is φ = 6673404000.
The previous prime is 20020212001. The next prime is 20020212053. The reversal of 20020212012 is 21021202002.
It is a tau number, because it is divible by the number of its divisors (12).
It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1668351001 = 20020212012 / (2 + 0 + 0 + 2 + 0 + 2 + 1 + 2 + 0 + 1 + 2).
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, 834175489 + ... + 834175512.
Almost surely, 220020212012 is an apocalyptic number.
It is an amenable number.
20020212012 is an abundant number, since it is smaller than the sum of its proper divisors (26693616044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20020212012 is a wasteful number, since it uses less digits than its factorization.
20020212012 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1668351008 (or 1668351006 counting only the distinct ones).
The product of its (nonzero) digits is 32, while the sum is 12.
Adding to 20020212012 its reverse (21021202002), we get a palindrome (41041414014).
The spelling of 20020212012 in words is "twenty billion, twenty million, two hundred twelve thousand, twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •