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16497486497 = 194779233851
BaseRepresentation
bin11110101110101001…
…11010101010100001
31120120201221010222102
433113110322222201
5232241324031442
611325010220145
71122552215162
oct172724725241
946521833872
1016497486497
116aa6445868
123244b84655
13172bb6b23b
14b27071769
15668514232
hex3d753aaa1

16497486497 has 16 divisors (see below), whose sum is σ = 17959833600. Its totient is φ = 15102968400.

The previous prime is 16497486469. The next prime is 16497486503. The reversal of 16497486497 is 79468479461.

It is a cyclic number.

It is not a de Polignac number, because 16497486497 - 218 = 16497224353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16497486457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46379 + ... + 187472.

It is an arithmetic number, because the mean of its divisors is an integer number (1122489600).

Almost surely, 216497486497 is an apocalyptic number.

It is an amenable number.

16497486497 is a deficient number, since it is larger than the sum of its proper divisors (1462347103).

16497486497 is a wasteful number, since it uses less digits than its factorization.

16497486497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233996.

The product of its digits is 73156608, while the sum is 65.

The spelling of 16497486497 in words is "sixteen billion, four hundred ninety-seven million, four hundred eighty-six thousand, four hundred ninety-seven".

Divisors: 1 19 47 79 893 1501 3713 70547 233851 4443169 10990997 18474229 208828943 351010351 868288763 16497486497