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2222042020 = 2251119531589
BaseRepresentation
bin1000010001110001…
…1010101110100100
312201212011102121121
42010130122232210
514022320321040
61004254023324
7106031021422
oct20434325644
95655142547
102222042020
11a40315070
125201a7b44
1329547b383
14171178112
15d0122c4a
hex8471aba4

2222042020 has 48 divisors (see below), whose sum is σ = 5358427200. Its totient is φ = 765486720.

The previous prime is 2222041957. The next prime is 2222042023. The reversal of 2222042020 is 202402222.

It is a junction number, because it is equal to n+sod(n) for n = 2222041985 and 2222042003.

It is not an unprimeable number, because it can be changed into a prime (2222042023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261615 + ... + 269974.

It is an arithmetic number, because the mean of its divisors is an integer number (111633900).

Almost surely, 22222042020 is an apocalyptic number.

2222042020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222042020 is an abundant number, since it is smaller than the sum of its proper divisors (3136385180).

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

2222042020 is a wasteful number, since it uses less digits than its factorization.

2222042020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531628 (or 531626 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2222042020 is about 47138.5407071538. The cubic root of 2222042020 is about 1304.9206060437.

Adding to 2222042020 its reverse (202402222), we get a palindrome (2424444242).

The spelling of 2222042020 in words is "two billion, two hundred twenty-two million, forty-two thousand, twenty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 380 418 836 1045 2090 4180 531589 1063178 2126356 2657945 5315890 5847479 10100191 10631780 11694958 20200382 23389916 29237395 40400764 50500955 58474790 101001910 111102101 116949580 202003820 222204202 444408404 555510505 1111021010 2222042020