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2022223240 = 23550555581
BaseRepresentation
bin111100010001000…
…1010110110001000
312012221011120210001
41320202022312020
513120142120430
6532355132344
7101053420402
oct17042126610
95187146701
102022223240
11948546284
124852a40b4
13262c586cb
14152801b72
15bc8023ca
hex7888ad88

2022223240 has 16 divisors (see below), whose sum is σ = 4550002380. Its totient is φ = 808889280.

The previous prime is 2022223213. The next prime is 2022223241. The reversal of 2022223240 is 423222202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1829957284 + 192265956 = 42778^2 + 13866^2 .

It is not an unprimeable number, because it can be changed into a prime (2022223241) 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 3 ways as a sum of consecutive naturals, for example, 25277751 + ... + 25277830.

Almost surely, 22022223240 is an apocalyptic number.

2022223240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022223240 is an abundant number, since it is smaller than the sum of its proper divisors (2527779140).

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

2022223240 is a wasteful number, since it uses less digits than its factorization.

2022223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50555592 (or 50555588 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2022223240 is about 44969.1365271783. The cubic root of 2022223240 is about 1264.5704593379.

Adding to 2022223240 its reverse (423222202), we get a palindrome (2445445442).

The spelling of 2022223240 in words is "two billion, twenty-two million, two hundred twenty-three thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 50555581 101111162 202222324 252777905 404444648 505555810 1011111620 2022223240