Base | Representation |
---|---|
bin | 111001010000… |
… | …1100111101010 |
3 | 2002111021121110 |
4 | 1302201213222 |
5 | 30141201442 |
6 | 2551251150 |
7 | 513120024 |
oct | 162414752 |
9 | 62437543 |
10 | 30022122 |
11 | 15a46079 |
12 | a079ab6 |
13 | 62b2090 |
14 | 3db7014 |
15 | 298069c |
hex | 1ca19ea |
30022122 has 32 divisors (see below), whose sum is σ = 65116800. Its totient is φ = 9172800.
The previous prime is 30022121. The next prime is 30022123. The reversal of 30022122 is 22122003.
It is an interprime number because it is at equal distance from previous prime (30022121) and next prime (30022123).
It is a junction number, because it is equal to n+sod(n) for n = 30022098 and 30022107.
It is not an unprimeable number, because it can be changed into a prime (30022121) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10504 + ... + 13052.
It is an arithmetic number, because the mean of its divisors is an integer number (2034900).
Almost surely, 230022122 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30022122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32558400).
30022122 is an abundant number, since it is smaller than the sum of its proper divisors (35094678).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30022122 is a wasteful number, since it uses less digits than its factorization.
30022122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2718.
The product of its (nonzero) digits is 48, while the sum is 12.
The square root of 30022122 is about 5479.2446559722. The cubic root of 30022122 is about 310.7996076049.
Adding to 30022122 its reverse (22122003), we get a palindrome (52144125).
It can be divided in two parts, 300 and 22122, that added together give a palindrome (22422).
The spelling of 30022122 in words is "thirty million, twenty-two thousand, one hundred twenty-two".
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