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1144444 = 22725839
BaseRepresentation
bin100010111011001111100
32011010212211
410113121330
5243110234
640310204
712504400
oct4273174
92133784
101144444
11711924
12472364
13310bb2
1421b100
15179164
hex11767c

1144444 has 18 divisors (see below), whose sum is σ = 2330160. Its totient is φ = 490392.

The previous prime is 1144441. The next prime is 1144453. The reversal of 1144444 is 4444411.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2724 + ... + 3115.

21144444 is an apocalyptic number.

1144444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1144444 is an abundant number, since it is smaller than the sum of its proper divisors (1185716).

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

1144444 is a wasteful number, since it uses less digits than its factorization.

1144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857 (or 5848 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 1144444 is about 1069.7868946664. The cubic root of 1144444 is about 104.5999592974.

Adding to 1144444 its reverse (4444411), we get a palindrome (5588855).

It can be divided in two parts, 11 and 44444, that multiplied together give a palindrome (488884).

The spelling of 1144444 in words is "one million, one hundred forty-four thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 5839 11678 23356 40873 81746 163492 286111 572222 1144444