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2224440040 = 23555611001
BaseRepresentation
bin1000010010010110…
…0100001011101000
312202000200021002011
42010211210023220
514023424040130
61004421245304
7106060266634
oct20445441350
95660607064
102224440040
11a417027a9
12520b63834
13295b0aa14
141715dddc4
15d044852a
hex849642e8

2224440040 has 16 divisors (see below), whose sum is σ = 5004990180. Its totient is φ = 889776000.

The previous prime is 2224440019. The next prime is 2224440047. The reversal of 2224440040 is 400444222.

It can be written as a sum of positive squares in 2 ways, for example, as 2094160644 + 130279396 = 45762^2 + 11414^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2224439993 and 2224440020.

It is not an unprimeable number, because it can be changed into a prime (2224440047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27805461 + ... + 27805540.

Almost surely, 22224440040 is an apocalyptic number.

2224440040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2224440040 is an abundant number, since it is smaller than the sum of its proper divisors (2780550140).

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

2224440040 is a wasteful number, since it uses less digits than its factorization.

2224440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55611012 (or 55611008 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 2224440040 is about 47163.9697226601. The cubic root of 2224440040 is about 1305.3898592013.

Adding to 2224440040 its reverse (400444222), we get a palindrome (2624884262).

The spelling of 2224440040 in words is "two billion, two hundred twenty-four million, four hundred forty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 55611001 111222002 222444004 278055005 444888008 556110010 1112220020 2224440040