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6444240113 = 137175326833
BaseRepresentation
bin1100000000001101…
…10100110011110001
3121122002222022112202
412000012310303301
5101144211140423
62543242232545
7315460065023
oct60006646361
917562868482
106444240113
112807672a83
1212ba1b5755
137b9129b3c
14451c0c013
1527ab39728
hex1801b4cf1

6444240113 has 8 divisors (see below), whose sum is σ = 6495223368. Its totient is φ = 6393314304.

The previous prime is 6444240109. The next prime is 6444240181. The reversal of 6444240113 is 3110424446.

It can be written as a sum of positive squares in 4 ways, for example, as 81306289 + 6362933824 = 9017^2 + 79768^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6444240113 - 22 = 6444240109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6444245113) 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, 226745 + ... + 253577.

It is an arithmetic number, because the mean of its divisors is an integer number (811902921).

Almost surely, 26444240113 is an apocalyptic number.

It is an amenable number.

6444240113 is a deficient number, since it is larger than the sum of its proper divisors (50983255).

6444240113 is a wasteful number, since it uses less digits than its factorization.

6444240113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28723.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 6444240113 is about 80276.0245216466. The cubic root of 6444240113 is about 1860.9037224916.

Adding to 6444240113 its reverse (3110424446), we get a palindrome (9554664559).

The spelling of 6444240113 in words is "six billion, four hundred forty-four million, two hundred forty thousand, one hundred thirteen".

Divisors: 1 137 1753 26833 240161 3676121 47038249 6444240113