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30030222222 = 232721113457521
BaseRepresentation
bin11011111101111100…
…001101001110001110
32212111212011100110200
4123331330031032032
5443000214102342
621443511514330
72112114451200
oct337574151616
985455140420
1030030222222
1111810306480
1259a10889a6
132aa7717280
14164c474770
15bab5e894c
hex6fdf0d38e

30030222222 has 288 divisors, whose sum is σ = 89286279264. Its totient is φ = 7170508800.

The previous prime is 30030222221. The next prime is 30030222239. The reversal of 30030222222 is 22222203003.

It is a Harshad number since it is a multiple of its sum of digits (18).

30030222222 is a modest number, since divided by 222222 gives 30030 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 30030222195 and 30030222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30030222221) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 57639322 + ... + 57639842.

It is an arithmetic number, because the mean of its divisors is an integer number (310021803).

Almost surely, 230030222222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30030222222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44643139632).

30030222222 is an abundant number, since it is smaller than the sum of its proper divisors (59256057042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30030222222 is a wasteful number, since it uses less digits than its factorization.

30030222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

Adding to 30030222222 its reverse (22222203003), we get a palindrome (52252425225).

It can be divided in two parts, 30030 and 222222, that added together give a palindrome (252252).

The spelling of 30030222222 in words is "thirty billion, thirty million, two hundred twenty-two thousand, two hundred twenty-two".