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5284889 = 24121929
BaseRepresentation
bin10100001010010000011001
3100221111111122
4110022100121
52323104024
6305135025
762630561
oct24122031
910844448
105284889
112a8a685
12192a475
13113066c
149b7da1
156e5d5e
hex50a419

5284889 has 4 divisors (see below), whose sum is σ = 5307060. Its totient is φ = 5262720.

The previous prime is 5284879. The next prime is 5284891. The reversal of 5284889 is 9884825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4840000 + 444889 = 2200^2 + 667^2 .

It is a cyclic number.

It is not a de Polignac number, because 5284889 - 220 = 4236313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5284819) 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, 10724 + ... + 11205.

It is an arithmetic number, because the mean of its divisors is an integer number (1326765).

Almost surely, 25284889 is an apocalyptic number.

It is an amenable number.

5284889 is a deficient number, since it is larger than the sum of its proper divisors (22171).

5284889 is a wasteful number, since it uses less digits than its factorization.

5284889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22170.

The product of its digits is 184320, while the sum is 44.

The square root of 5284889 is about 2298.8886445411. Note that the first 3 decimals coincide. The cubic root of 5284889 is about 174.1854828334.

The spelling of 5284889 in words is "five million, two hundred eighty-four thousand, eight hundred eighty-nine".

Divisors: 1 241 21929 5284889