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8348117809 = 28687291007
BaseRepresentation
bin1111100011001011…
…00010101100110001
3210112210110022202111
413301211202230301
5114044104232214
63500213045321
7413605554613
oct76145425461
923483408674
108348117809
1135a4327519
12174b926841
13a306ba6a5
14592a04db3
1533cd615c4
hex1f1962b31

8348117809 has 4 divisors (see below), whose sum is σ = 8348437504. Its totient is φ = 8347798116.

The previous prime is 8348117807. The next prime is 8348117891. The reversal of 8348117809 is 9087118438.

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.

It is a cyclic number.

It is not a de Polignac number, because 8348117809 - 21 = 8348117807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8348117807) 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 3 ways as a sum of consecutive naturals, for example, 116817 + ... + 174190.

It is an arithmetic number, because the mean of its divisors is an integer number (2087109376).

Almost surely, 28348117809 is an apocalyptic number.

It is an amenable number.

8348117809 is a deficient number, since it is larger than the sum of its proper divisors (319695).

8348117809 is a wasteful number, since it uses less digits than its factorization.

8348117809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319694.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 8348117809 is about 91368.0349411106. The cubic root of 8348117809 is about 2028.5989190801.

The spelling of 8348117809 in words is "eight billion, three hundred forty-eight million, one hundred seventeen thousand, eight hundred nine".

Divisors: 1 28687 291007 8348117809