Base | Representation |
---|---|
bin | 10010101001010011… |
… | …000011000101010110 |
3 | 1220200020120010222100 |
4 | 102221103003011112 |
5 | 312000133241204 |
6 | 13110330342530 |
7 | 1306055665113 |
oct | 225123030526 |
9 | 56606503870 |
10 | 20020212054 |
11 | 85439846a7 |
12 | 3a6888aa46 |
13 | 1b7093372b |
14 | d7cc6790a |
15 | 7c290ea39 |
hex | 4a94c3156 |
20020212054 has 12 divisors (see below), whose sum is σ = 43377126156. Its totient is φ = 6673404012.
The previous prime is 20020212053. The next prime is 20020212071. The reversal of 20020212054 is 45021202002.
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1112234003 = 20020212054 / (2 + 0 + 0 + 2 + 0 + 2 + 1 + 2 + 0 + 5 + 4).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20020212053) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556116984 + ... + 556117019.
It is an arithmetic number, because the mean of its divisors is an integer number (3614760513).
Almost surely, 220020212054 is an apocalyptic number.
20020212054 is an abundant number, since it is smaller than the sum of its proper divisors (23356914102).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20020212054 is a wasteful number, since it uses less digits than its factorization.
20020212054 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1112234011 (or 1112234008 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 18.
Adding to 20020212054 its reverse (45021202002), we get a palindrome (65041414056).
The spelling of 20020212054 in words is "twenty billion, twenty million, two hundred twelve thousand, fifty-four".
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