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420213868 = 22105053467
BaseRepresentation
bin11001000010111…
…111010001101100
31002021201002001121
4121002333101230
51330033320433
6105410350324
713261521214
oct3102772154
91067632047
10420213868
111a6221998
12b888b3a4
136909b179
143db47244
1526d57c2d
hex190bf46c

420213868 has 6 divisors (see below), whose sum is σ = 735374276. Its totient is φ = 210106932.

The previous prime is 420213853. The next prime is 420213881. The reversal of 420213868 is 868312024.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52526730 + ... + 52526737.

Almost surely, 2420213868 is an apocalyptic number.

It is an amenable number.

420213868 is a deficient number, since it is larger than the sum of its proper divisors (315160408).

420213868 is a wasteful number, since it uses less digits than its factorization.

420213868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105053471 (or 105053469 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 420213868 is about 20499.1187127642. The cubic root of 420213868 is about 749.0143306569.

The spelling of 420213868 in words is "four hundred twenty million, two hundred thirteen thousand, eight hundred sixty-eight".

Divisors: 1 2 4 105053467 210106934 420213868