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2222420345 = 5716260339
BaseRepresentation
bin1000010001110111…
…0111000101111001
312201212212122120122
42010131313011321
514022414422340
61004310103025
7106034155415
oct20435670571
95655778518
102222420345
11a40553332
1252034aa75
13295581632
14171235d45
15d0199db5
hex84777179

2222420345 has 8 divisors (see below), whose sum is σ = 2704466880. Its totient is φ = 1752894640.

The previous prime is 2222420341. The next prime is 2222420357. The reversal of 2222420345 is 5430242222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2222420345 - 22 = 2222420341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222420341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3129815 + ... + 3130524.

It is an arithmetic number, because the mean of its divisors is an integer number (338058360).

Almost surely, 22222420345 is an apocalyptic number.

It is an amenable number.

2222420345 is a deficient number, since it is larger than the sum of its proper divisors (482046535).

2222420345 is an equidigital number, since it uses as much as digits as its factorization.

2222420345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260415.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 2222420345 is about 47142.5534416624. The cubic root of 2222420345 is about 1304.9946604597.

Adding to 2222420345 its reverse (5430242222), we get a palindrome (7652662567).

The spelling of 2222420345 in words is "two billion, two hundred twenty-two million, four hundred twenty thousand, three hundred forty-five".

Divisors: 1 5 71 355 6260339 31301695 444484069 2222420345