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8420052 = 223701671
BaseRepresentation
bin100000000111…
…101011010100
3120211210010210
4200013223110
54123420202
6500245420
7131366154
oct40075324
916753123
108420052
114831123
1229a0870
13198a6a4
141192764
15b14c6c
hex807ad4

8420052 has 12 divisors (see below), whose sum is σ = 19646816. Its totient is φ = 2806680.

The previous prime is 8420051. The next prime is 8420119. The reversal of 8420052 is 2500248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420051) 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, 350824 + ... + 350847.

Almost surely, 28420052 is an apocalyptic number.

It is an amenable number.

8420052 is an abundant number, since it is smaller than the sum of its proper divisors (11226764).

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

8420052 is a wasteful number, since it uses less digits than its factorization.

8420052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701678 (or 701676 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 8420052 is about 2901.7325858873. The cubic root of 8420052 is about 203.4408950451.

The spelling of 8420052 in words is "eight million, four hundred twenty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 701671 1403342 2105013 2806684 4210026 8420052