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4472689 = 13344053
BaseRepresentation
bin10001000011111101110001
322102020101011
4101003331301
52121111224
6235510521
753005624
oct21037561
98366334
104472689
112585441
1215b8441
13c07a80
14845dbb
155d5394
hex443f71

4472689 has 4 divisors (see below), whose sum is σ = 4816756. Its totient is φ = 4128624.

The previous prime is 4472687. The next prime is 4472693. The reversal of 4472689 is 9862744.

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 2560000 + 1912689 = 1600^2 + 1383^2 .

It is a cyclic number.

It is not a de Polignac number, because 4472689 - 21 = 4472687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4472687) 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, 172014 + ... + 172039.

It is an arithmetic number, because the mean of its divisors is an integer number (1204189).

Almost surely, 24472689 is an apocalyptic number.

It is an amenable number.

4472689 is a deficient number, since it is larger than the sum of its proper divisors (344067).

4472689 is a wasteful number, since it uses less digits than its factorization.

4472689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344066.

The product of its digits is 96768, while the sum is 40.

The square root of 4472689 is about 2114.8732822559. The cubic root of 4472689 is about 164.7616884149.

It can be divided in two parts, 447 and 2689, that added together give a square (3136 = 562).

The spelling of 4472689 in words is "four million, four hundred seventy-two thousand, six hundred eighty-nine".

Divisors: 1 13 344053 4472689