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16968969679 = 171223816169
BaseRepresentation
bin11111100110110110…
…11110110111001111
31121210121002222022111
433303123132313033
5234223024012204
611443451524451
71140335601544
oct176333366717
947717088274
1016968969679
1172185a5092
123356a59727
1317a574a47c
14b6d922bcb
15694ae7d04
hex3f36dedcf

16968969679 has 8 divisors (see below), whose sum is σ = 17981857440. Its totient is φ = 15957716736.

The previous prime is 16968969671. The next prime is 16968969697. The reversal of 16968969679 is 97696986961.

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 16968969679 - 23 = 16968969671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16968969671) 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, 387294 + ... + 428875.

It is an arithmetic number, because the mean of its divisors is an integer number (2247732180).

Almost surely, 216968969679 is an apocalyptic number.

16968969679 is a deficient number, since it is larger than the sum of its proper divisors (1012887761).

16968969679 is a wasteful number, since it uses less digits than its factorization.

16968969679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817409.

The product of its digits is 476171136, while the sum is 76.

The spelling of 16968969679 in words is "sixteen billion, nine hundred sixty-eight million, nine hundred sixty-nine thousand, six hundred seventy-nine".

Divisors: 1 17 1223 20791 816169 13874873 998174687 16968969679