Base | Representation |
---|---|
bin | 10010111010000101… |
… | …111111110000001100 |
3 | 1221101212210121202220 |
4 | 102322011333300030 |
5 | 313034303100322 |
6 | 13154314215340 |
7 | 1316050115511 |
oct | 227205776014 |
9 | 57355717686 |
10 | 20302003212 |
11 | 8678a51557 |
12 | 3b27124550 |
13 | 1bb712746a |
14 | da845b308 |
15 | 7dc52355c |
hex | 4ba17fc0c |
20302003212 has 24 divisors (see below), whose sum is σ = 47454318912. Its totient is φ = 6755480400.
The previous prime is 20302003153. The next prime is 20302003229. The reversal of 20302003212 is 21230020302.
It is a junction number, because it is equal to n+sod(n) for n = 20302003191 and 20302003200.
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, 1474614 + ... + 1488317.
It is an arithmetic number, because the mean of its divisors is an integer number (1977263288).
Almost surely, 220302003212 is an apocalyptic number.
It is an amenable number.
20302003212 is an abundant number, since it is smaller than the sum of its proper divisors (27152315700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20302003212 is a wasteful number, since it uses less digits than its factorization.
20302003212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2963509 (or 2963507 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 15.
Adding to 20302003212 its reverse (21230020302), we get a palindrome (41532023514).
The spelling of 20302003212 in words is "twenty billion, three hundred two million, three thousand, two hundred twelve".
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