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2222230220 = 225724236551
BaseRepresentation
bin1000010001110100…
…1000101011001100
312201212111222202222
42010131020223030
514022342331340
61004302034512
7106032434210
oct20435105314
95655458688
102222230220
11a40433501
12520278a38
13295515c32
141711c6940
15d015d8b5
hex84748acc

2222230220 has 48 divisors (see below), whose sum is σ = 5336368128. Its totient is φ = 761476800.

The previous prime is 2222230193. The next prime is 2222230229. The reversal of 2222230220 is 220322222.

It is not an unprimeable number, because it can be changed into a prime (2222230229) 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, 335945 + ... + 342495.

It is an arithmetic number, because the mean of its divisors is an integer number (111174336).

Almost surely, 22222230220 is an apocalyptic number.

2222230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222230220 is an abundant number, since it is smaller than the sum of its proper divisors (3114137908).

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

2222230220 is a wasteful number, since it uses less digits than its factorization.

2222230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990 (or 8988 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 2222230220 is about 47140.5369082704. The cubic root of 2222230220 is about 1304.9574458998.

Adding to 2222230220 its reverse (220322222), we get a palindrome (2442552442).

The spelling of 2222230220 in words is "two billion, two hundred twenty-two million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2423 4846 6551 9692 12115 13102 16961 24230 26204 32755 33922 45857 48460 65510 67844 84805 91714 131020 169610 183428 229285 339220 458570 917140 15873073 31746146 63492292 79365365 111111511 158730730 222223022 317461460 444446044 555557555 1111115110 2222230220