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1144442 = 21344017
BaseRepresentation
bin100010111011001111010
32011010212202
410113121322
5243110232
640310202
712504365
oct4273172
92133782
101144442
11711922
12472362
13310bb0
1421b0dc
15179162
hex11767a

1144442 has 8 divisors (see below), whose sum is σ = 1848756. Its totient is φ = 528192.

The previous prime is 1144441. The next prime is 1144453. The reversal of 1144442 is 2444411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1142761 + 1681 = 1069^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 21983 + ... + 22034.

21144442 is an apocalyptic number.

1144442 is a deficient number, since it is larger than the sum of its proper divisors (704314).

1144442 is a wasteful number, since it uses less digits than its factorization.

1144442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44032.

The product of its digits is 512, while the sum is 20.

The square root of 1144442 is about 1069.7859599004. The cubic root of 1144442 is about 104.5998983653.

Adding to 1144442 its reverse (2444411), we get a palindrome (3588853).

The spelling of 1144442 in words is "one million, one hundred forty-four thousand, four hundred forty-two".

Divisors: 1 2 13 26 44017 88034 572221 1144442