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252040012 = 2279001429
BaseRepresentation
bin11110000010111…
…01001101001100
3122120020221220021
433001131031030
51004010240022
641002031524
76150206350
oct1701351514
9576227807
10252040012
1111a2a7434
12704a85a4
13402a8103
142568b460
15171d87c7
hexf05d34c

252040012 has 12 divisors (see below), whose sum is σ = 504080080. Its totient is φ = 108017136.

The previous prime is 252040007. The next prime is 252040021. The reversal of 252040012 is 210040252.

252040012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

252040012 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4500687 + ... + 4500742.

Almost surely, 2252040012 is an apocalyptic number.

It is an amenable number.

252040012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252040012 is a wasteful number, since it uses less digits than its factorization.

252040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9001440 (or 9001438 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 252040012 is about 15875.7680759074. The cubic root of 252040012 is about 631.6693879145.

Adding to 252040012 its reverse (210040252), we get a palindrome (462080264).

The spelling of 252040012 in words is "two hundred fifty-two million, forty thousand, twelve".

Divisors: 1 2 4 7 14 28 9001429 18002858 36005716 63010003 126020006 252040012