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200012840 = 2355000321
BaseRepresentation
bin10111110101111…
…11010000101000
3111221100201000222
423322333100220
5402200402330
631502545212
74646036546
oct1372772050
9457321028
10200012840
11a29a1675
1256b98208
13325900c1
141c7c6d96
151285d0e5
hexbebf428

200012840 has 16 divisors (see below), whose sum is σ = 450028980. Its totient is φ = 80005120.

The previous prime is 200012821. The next prime is 200012849. The reversal of 200012840 is 48210002.

200012840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 181333156 + 18679684 = 13466^2 + 4322^2 .

It is not an unprimeable number, because it can be changed into a prime (200012849) 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, 2500121 + ... + 2500200.

Almost surely, 2200012840 is an apocalyptic number.

200012840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200012840 is an abundant number, since it is smaller than the sum of its proper divisors (250016140).

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

200012840 is a wasteful number, since it uses less digits than its factorization.

200012840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000332 (or 5000328 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 200012840 is about 14142.5895789986. The cubic root of 200012840 is about 584.8160621707.

Adding to 200012840 its reverse (48210002), we get a palindrome (248222842).

The spelling of 200012840 in words is "two hundred million, twelve thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 5000321 10000642 20001284 25001605 40002568 50003210 100006420 200012840