Base | Representation |
---|---|
bin | 11100001001010101… |
… | …100100010111110110 |
3 | 2220000011221012112200 |
4 | 130021111210113312 |
5 | 443343140420042 |
6 | 21514501525330 |
7 | 2116625555163 |
oct | 341125442766 |
9 | 86004835480 |
10 | 30221420022 |
11 | 118a9227192 |
12 | 5a35113846 |
13 | 2b0820bc71 |
14 | 1669a0506a |
15 | bbd2b4c4c |
hex | 7095645f6 |
30221420022 has 48 divisors (see below), whose sum is σ = 66654815760. Its totient is φ = 9893361600.
The previous prime is 30221420017. The next prime is 30221420041. The reversal of 30221420022 is 22002412203.
30221420022 is a `hidden beast` number, since 3 + 0 + 221 + 420 + 0 + 22 = 666.
It is a super-2 number, since 2×302214200222 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 30221419977 and 30221420004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1113372 + ... + 1140192.
It is an arithmetic number, because the mean of its divisors is an integer number (1388641995).
Almost surely, 230221420022 is an apocalyptic number.
30221420022 is an abundant number, since it is smaller than the sum of its proper divisors (36433395738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30221420022 is a wasteful number, since it uses less digits than its factorization.
30221420022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27949 (or 27946 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
Adding to 30221420022 its reverse (22002412203), we get a palindrome (52223832225).
The spelling of 30221420022 in words is "thirty billion, two hundred twenty-one million, four hundred twenty thousand, twenty-two".
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