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20182384242 = 2321121243569
BaseRepresentation
bin10010110010111101…
…101011111001110010
31221002112201100101200
4102302331223321302
5312313142243432
613134402312030
71313065302246
oct226275537162
957075640350
1020182384242
11861747aaa9
123ab3058616
131b98404ac7
14d96600426
157d1c95a7c
hex4b2f6be72

20182384242 has 12 divisors (see below), whose sum is σ = 43728499230. Its totient is φ = 6727461408.

The previous prime is 20182384219. The next prime is 20182384273. The reversal of 20182384242 is 24248328102.

20182384242 is a `hidden beast` number, since 20 + 18 + 2 + 384 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19549912041 + 632472201 = 139821^2 + 25149^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20182384197 and 20182384206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560621767 + ... + 560621802.

Almost surely, 220182384242 is an apocalyptic number.

20182384242 is an abundant number, since it is smaller than the sum of its proper divisors (23546114988).

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

20182384242 is a wasteful number, since it uses less digits than its factorization.

20182384242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121243577 (or 1121243574 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20182384242 in words is "twenty billion, one hundred eighty-two million, three hundred eighty-four thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 18 1121243569 2242487138 3363730707 6727461414 10091192121 20182384242