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13444023009 = 310694192087
BaseRepresentation
bin11001000010101001…
…11000001011100001
31021200221022010112010
430201110320023201
5210013132214014
610102012023133
7654104211234
oct144124701341
937627263463
1013444023009
11577988951a
122732461aa9
131363388001
1491770d41b
1553a40e359
hex3215382e1

13444023009 has 8 divisors (see below), whose sum is σ = 17942136640. Its totient is φ = 8954295696.

The previous prime is 13444022989. The next prime is 13444023013. The reversal of 13444023009 is 90032044431.

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

It is not a de Polignac number, because 13444023009 - 29 = 13444022497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13444021009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2092837 + ... + 2099250.

It is an arithmetic number, because the mean of its divisors is an integer number (2242767080).

Almost surely, 213444023009 is an apocalyptic number.

It is an amenable number.

13444023009 is a deficient number, since it is larger than the sum of its proper divisors (4498113631).

13444023009 is a wasteful number, since it uses less digits than its factorization.

13444023009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193159.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 13444023009 in words is "thirteen billion, four hundred forty-four million, twenty-three thousand, nine".

Divisors: 1 3 1069 3207 4192087 12576261 4481341003 13444023009