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3444144221 = 72816592657
BaseRepresentation
bin1100110101001001…
…0111100001011101
322220000202122200002
43031102113201131
524023200103341
61325431544045
7151230512540
oct31522274135
98800678602
103444144221
111508147591
1280152b025
1342b710a7b
142495bc857
1515257729b
hexcd49785d

3444144221 has 16 divisors (see below), whose sum is σ = 3957655680. Its totient is φ = 2936048640.

The previous prime is 3444144217. The next prime is 3444144229. The reversal of 3444144221 is 1224414443.

It is not a de Polignac number, because 3444144221 - 22 = 3444144217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3444144229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294925 + ... + 1297581.

It is an arithmetic number, because the mean of its divisors is an integer number (247353480).

Almost surely, 23444144221 is an apocalyptic number.

It is an amenable number.

3444144221 is a deficient number, since it is larger than the sum of its proper divisors (513511459).

3444144221 is a wasteful number, since it uses less digits than its factorization.

3444144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604.

The product of its digits is 12288, while the sum is 29.

The square root of 3444144221 is about 58686.8317512540. The cubic root of 3444144221 is about 1510.1744197158.

Adding to 3444144221 its reverse (1224414443), we get a palindrome (4668558664).

The spelling of 3444144221 in words is "three billion, four hundred forty-four million, one hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 7 281 659 1967 2657 4613 18599 185179 746617 1296253 1750963 5226319 12256741 492020603 3444144221