Base | Representation |
---|---|
bin | 11011111100001001… |
… | …000000001011000100 |
3 | 2212102202100000211210 |
4 | 123330021000023010 |
5 | 442420001202322 |
6 | 21440512331420 |
7 | 2111266660416 |
oct | 337411001304 |
9 | 85382300753 |
10 | 30000022212 |
11 | 117a5259796 |
12 | 5992b43b70 |
13 | 2aa13a2244 |
14 | 16484529b6 |
15 | ba8b3070c |
hex | 6fc2402c4 |
30000022212 has 48 divisors (see below), whose sum is σ = 72292892672. Its totient is φ = 9672769440.
The previous prime is 30000022211. The next prime is 30000022237. The reversal of 30000022212 is 21222000003.
It is a super-3 number, since 3×300000222123 (a number of 32 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is not an unprimeable number, because it can be changed into a prime (30000022211) 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, 801213 + ... + 837819.
Almost surely, 230000022212 is an apocalyptic number.
It is an amenable number.
30000022212 is an abundant number, since it is smaller than the sum of its proper divisors (42292870460).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30000022212 is a wasteful number, since it uses less digits than its factorization.
30000022212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38848 (or 38846 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
Adding to 30000022212 its reverse (21222000003), we get a palindrome (51222022215).
The spelling of 30000022212 in words is "thirty billion, twenty-two thousand, two hundred twelve".
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