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222430120 = 23511505523
BaseRepresentation
bin11010100001000…
…00001110101000
3120111112121202121
431100200032220
5423420230440
634023241024
75340424213
oct1520401650
9514477677
10222430120
11104613050
12625a9174
133710b873
142178077a
15147da34a
hexd4203a8

222430120 has 32 divisors (see below), whose sum is σ = 545965920. Its totient is φ = 80883520.

The previous prime is 222430073. The next prime is 222430129. The reversal of 222430120 is 21034222.

It is a junction number, because it is equal to n+sod(n) for n = 222430094 and 222430103.

It is not an unprimeable number, because it can be changed into a prime (222430129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252322 + ... + 253201.

It is an arithmetic number, because the mean of its divisors is an integer number (17061435).

Almost surely, 2222430120 is an apocalyptic number.

222430120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222430120 is an abundant number, since it is smaller than the sum of its proper divisors (323535800).

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

222430120 is a wasteful number, since it uses less digits than its factorization.

222430120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505545 (or 505541 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222430120 is about 14914.0913233090. The cubic root of 222430120 is about 605.8956930706.

Adding to 222430120 its reverse (21034222), we get a palindrome (243464342).

The spelling of 222430120 in words is "two hundred twenty-two million, four hundred thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 505523 1011046 2022092 2527615 4044184 5055230 5560753 10110460 11121506 20220920 22243012 27803765 44486024 55607530 111215060 222430120