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79328968969 = 312776392173
BaseRepresentation
bin100100111100001100…
…0000000000100001001
321120202120110011110211
41021320120000010021
52244431204001334
6100235423041121
75505563052625
oct1117030000411
9246676404424
1079328968969
1130709153588
121345b1401a1
1376330c9333
143ba79c2185
1520e461ea64
hex1278600109

79328968969 has 8 divisors (see below), whose sum is σ = 81891805952. Its totient is φ = 76766371920.

The previous prime is 79328968937. The next prime is 79328968991. The reversal of 79328968969 is 96986982397.

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 79328968969 - 25 = 79328968937 is a prime.

It is a super-2 number, since 2×793289689692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79328968895 and 79328968904.

It is not an unprimeable number, because it can be changed into a prime (79328968909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814567 + ... + 906739.

It is an arithmetic number, because the mean of its divisors is an integer number (10236475744).

Almost surely, 279328968969 is an apocalyptic number.

It is an amenable number.

79328968969 is a deficient number, since it is larger than the sum of its proper divisors (2562836983).

79328968969 is a wasteful number, since it uses less digits than its factorization.

79328968969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119967.

The product of its digits is 634894848, while the sum is 76.

The spelling of 79328968969 in words is "seventy-nine billion, three hundred twenty-eight million, nine hundred sixty-eight thousand, nine hundred sixty-nine".

Divisors: 1 31 27763 92173 860653 2857363 2558998999 79328968969