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2118308484 = 223434105249
BaseRepresentation
bin111111001000010…
…1101001010000100
312110121222012221210
41332100231022010
513314241332414
6550110411420
7103331216325
oct17620551204
95417865853
102118308484
11997803576
124b1500b70
13279b2b396
1416149444c
15c5e81e59
hex7e42d284

2118308484 has 24 divisors (see below), whose sum is σ = 5057668000. Its totient is φ = 689681664.

The previous prime is 2118308417. The next prime is 2118308513. The reversal of 2118308484 is 4848038112.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052109 + ... + 2053140.

Almost surely, 22118308484 is an apocalyptic number.

It is an amenable number.

2118308484 is an abundant number, since it is smaller than the sum of its proper divisors (2939359516).

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

2118308484 is a wasteful number, since it uses less digits than its factorization.

2118308484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105299 (or 4105297 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 2118308484 is about 46025.0853774330. The cubic root of 2118308484 is about 1284.2899040667.

The spelling of 2118308484 in words is "two billion, one hundred eighteen million, three hundred eight thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 4105249 8210498 12315747 16420996 24631494 49262988 176525707 353051414 529577121 706102828 1059154242 2118308484