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4871868 = 223405989
BaseRepresentation
bin10010100101011010111100
3100011111221120
4102211122330
52221344433
6252230540
756260461
oct22453274
910144846
104871868
112828341
12176b450
131017681
1490b668
156637b3
hex4a56bc

4871868 has 12 divisors (see below), whose sum is σ = 11367720. Its totient is φ = 1623952.

The previous prime is 4871863. The next prime is 4871869. The reversal of 4871868 is 8681784.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4871861) 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, 202983 + ... + 203006.

It is an arithmetic number, because the mean of its divisors is an integer number (947310).

Almost surely, 24871868 is an apocalyptic number.

It is an amenable number.

4871868 is an abundant number, since it is smaller than the sum of its proper divisors (6495852).

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

4871868 is a wasteful number, since it uses less digits than its factorization.

4871868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405996 (or 405994 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 4871868 is about 2207.2308442934. The cubic root of 4871868 is about 169.5242523229.

The spelling of 4871868 in words is "four million, eight hundred seventy-one thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 405989 811978 1217967 1623956 2435934 4871868