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4472257 = 6416977
BaseRepresentation
bin10001000011110111000001
322102012210011
4101003313001
52121103012
6235504521
753004436
oct21036701
98365704
104472257
112585089
1215b8141
13c0780a
14845b8d
155d51a7
hex443dc1

4472257 has 4 divisors (see below), whose sum is σ = 4479876. Its totient is φ = 4464640.

The previous prime is 4472233. The next prime is 4472261. The reversal of 4472257 is 7522744.

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 2556801 + 1915456 = 1599^2 + 1384^2 .

It is a cyclic number.

It is not a de Polignac number, because 4472257 - 211 = 4470209 is a prime.

It is a d-powerful number, because it can be written as 43 + 43 + 7 + 218 + 222 + 56 + 72 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4472267) 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, 2848 + ... + 4129.

It is an arithmetic number, because the mean of its divisors is an integer number (1119969).

Almost surely, 24472257 is an apocalyptic number.

It is an amenable number.

4472257 is a deficient number, since it is larger than the sum of its proper divisors (7619).

4472257 is an equidigital number, since it uses as much as digits as its factorization.

4472257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618.

The product of its digits is 15680, while the sum is 31.

The square root of 4472257 is about 2114.7711460108. The cubic root of 4472257 is about 164.7563836761.

It can be divided in two parts, 447 and 2257, that added together give a square (2704 = 522).

The spelling of 4472257 in words is "four million, four hundred seventy-two thousand, two hundred fifty-seven".

Divisors: 1 641 6977 4472257