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4442180 = 225222109
BaseRepresentation
bin10000111100100001000100
322100200112012
4100330201010
52114122210
6235113352
752520651
oct20744104
98320465
104442180
112564526
1215a2858
13bc6c12
14838c28
155cb305
hex43c844

4442180 has 12 divisors (see below), whose sum is σ = 9328620. Its totient is φ = 1776864.

The previous prime is 4442171. The next prime is 4442189. The reversal of 4442180 is 812444.

It is an interprime number because it is at equal distance from previous prime (4442171) and next prime (4442189).

It can be written as a sum of positive squares in 2 ways, for example, as 2408704 + 2033476 = 1552^2 + 1426^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (4442189) 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, 111035 + ... + 111074.

It is an arithmetic number, because the mean of its divisors is an integer number (777385).

Almost surely, 24442180 is an apocalyptic number.

It is an amenable number.

4442180 is an abundant number, since it is smaller than the sum of its proper divisors (4886440).

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

4442180 is a wasteful number, since it uses less digits than its factorization.

4442180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222118 (or 222116 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 4442180 is about 2107.6479781975. The cubic root of 4442180 is about 164.3862105439.

It can be divided in two parts, 44 and 42180, that added together give a palindrome (42224).

The spelling of 4442180 in words is "four million, four hundred forty-two thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 222109 444218 888436 1110545 2221090 4442180