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1444141444 = 221319273719
BaseRepresentation
bin101011000010011…
…1101100110000100
310201122101222122011
41112010331212010
510424200011234
6355144544004
750533666624
oct12604754604
93648358564
101444141444
116811a8929
12343782004
131a0265385
14d9b22884
1586bb3b64
hex5613d984

1444141444 has 12 divisors (see below), whose sum is σ = 2529172800. Its totient is φ = 721520648.

The previous prime is 1444141441. The next prime is 1444141453. The reversal of 1444141444 is 4441414441.

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

It is not an unprimeable number, because it can be changed into a prime (1444141441) 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, 131584 + ... + 142135.

It is an arithmetic number, because the mean of its divisors is an integer number (210764400).

Almost surely, 21444141444 is an apocalyptic number.

It is an amenable number.

1444141444 is a deficient number, since it is larger than the sum of its proper divisors (1085031356).

1444141444 is a wasteful number, since it uses less digits than its factorization.

1444141444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275042 (or 275040 counting only the distinct ones).

The product of its digits is 16384, while the sum is 31.

The square root of 1444141444 is about 38001.8610596902. The cubic root of 1444141444 is about 1130.3247673818.

Adding to 1444141444 its reverse (4441414441), we get a palindrome (5885555885).

The spelling of 1444141444 in words is "one billion, four hundred forty-four million, one hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 1319 2638 5276 273719 547438 1094876 361035361 722070722 1444141444