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2223042020 = 225111152101
BaseRepresentation
bin1000010010000000…
…1110110111100100
312201221001020100122
42010200032313210
514023044321040
61004331301112
7106042355033
oct20440166744
95657036318
102223042020
11a40938411
125205aa798
1329573b5a4
1417135871a
15d026e1b5
hex8480ede4

2223042020 has 12 divisors (see below), whose sum is σ = 4668388284. Its totient is φ = 889216800.

The previous prime is 2223042011. The next prime is 2223042091. The reversal of 2223042020 is 202403222.

It can be written as a sum of positive squares in 2 ways, for example, as 236913664 + 1986128356 = 15392^2 + 44566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2223042020.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55576031 + ... + 55576070.

It is an arithmetic number, because the mean of its divisors is an integer number (389032357).

Almost surely, 22223042020 is an apocalyptic number.

2223042020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223042020 is an abundant number, since it is smaller than the sum of its proper divisors (2445346264).

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

2223042020 is a wasteful number, since it uses less digits than its factorization.

2223042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111152110 (or 111152108 counting only the distinct ones).

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

The square root of 2223042020 is about 47149.1465458284. The cubic root of 2223042020 is about 1305.1163306503.

Adding to 2223042020 its reverse (202403222), we get a palindrome (2425445242).

The spelling of 2223042020 in words is "two billion, two hundred twenty-three million, forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 111152101 222304202 444608404 555760505 1111521010 2223042020