Base | Representation |
---|---|
bin | 11100001001011000… |
… | …100101101110110110 |
3 | 2220000020102102222000 |
4 | 130021120211232312 |
5 | 443343341241042 |
6 | 21514530520130 |
7 | 2116635364212 |
oct | 341130455666 |
9 | 86006372860 |
10 | 30222212022 |
11 | 118a9718232 |
12 | 5a35436046 |
13 | 2b084285c2 |
14 | 1669b6d942 |
15 | bbd3be74c |
hex | 709625bb6 |
30222212022 has 64 divisors (see below), whose sum is σ = 71395430400. Its totient is φ = 9449330400.
The previous prime is 30222211993. The next prime is 30222212023. The reversal of 30222212022 is 22021222203.
30222212022 is a `hidden beast` number, since 302 + 222 + 120 + 22 = 666.
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 = 30222211986 and 30222212004.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30222212023) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42198 + ... + 249449.
It is an arithmetic number, because the mean of its divisors is an integer number (1115553600).
Almost surely, 230222212022 is an apocalyptic number.
30222212022 is an abundant number, since it is smaller than the sum of its proper divisors (41173218378).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30222212022 is a wasteful number, since it uses less digits than its factorization.
30222212022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 291778 (or 291772 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
Adding to 30222212022 its reverse (22021222203), we get a palindrome (52243434225).
The spelling of 30222212022 in words is "thirty billion, two hundred twenty-two million, two hundred twelve thousand, twenty-two".
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