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6443675113 = 8171788603
BaseRepresentation
bin1100000000001001…
…01010110111101001
3121122001220121111211
412000010222313221
5101144040100423
62543222153121
7315452222551
oct60004526751
917561817454
106443675113
112807317537
1212b9b827a1
137b8c8c915
14451b02161
1527aa7710d
hex18012ade9

6443675113 has 4 divisors (see below), whose sum is σ = 6444471888. Its totient is φ = 6442878340.

The previous prime is 6443675107. The next prime is 6443675131. The reversal of 6443675113 is 3115763446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3115763446 = 21557881723.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6443675113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6443670113) 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, 386131 + ... + 402472.

It is an arithmetic number, because the mean of its divisors is an integer number (1611117972).

Almost surely, 26443675113 is an apocalyptic number.

It is an amenable number.

6443675113 is a deficient number, since it is larger than the sum of its proper divisors (796775).

6443675113 is an equidigital number, since it uses as much as digits as its factorization.

6443675113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796774.

The product of its digits is 181440, while the sum is 40.

The square root of 6443675113 is about 80272.5053365098. The cubic root of 6443675113 is about 1860.8493358707.

The spelling of 6443675113 in words is "six billion, four hundred forty-three million, six hundred seventy-five thousand, one hundred thirteen".

Divisors: 1 8171 788603 6443675113