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2440120220 = 225196421369
BaseRepresentation
bin1001000101110001…
…0100011110011100
320022001111221122222
42101130110132130
514444132321340
61042044124512
7114316452056
oct22134243634
96261457588
102440120220
11104242548a
12581236738
132cb6c5125
141921048d6
15e434d8b5
hex9171479c

2440120220 has 24 divisors (see below), whose sum is σ = 5393950800. Its totient is φ = 924676992.

The previous prime is 2440120213. The next prime is 2440120223. The reversal of 2440120220 is 220210442.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440120223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3210305 + ... + 3211064.

It is an arithmetic number, because the mean of its divisors is an integer number (224747950).

Almost surely, 22440120220 is an apocalyptic number.

2440120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2440120220 is an abundant number, since it is smaller than the sum of its proper divisors (2953830580).

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

2440120220 is a wasteful number, since it uses less digits than its factorization.

2440120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421397 (or 6421395 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 2440120220 is about 49397.5730173052. The cubic root of 2440120220 is about 1346.2852094383.

Adding to 2440120220 its reverse (220210442), we get a palindrome (2660330662).

The spelling of 2440120220 in words is "two billion, four hundred forty million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 6421369 12842738 25685476 32106845 64213690 122006011 128427380 244012022 488024044 610030055 1220060110 2440120220