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16731510113 = 31752780789
BaseRepresentation
bin11111001010100011…
…01001010101100001
31121012001021210000202
433211101221111201
5233231231310423
611404130154545
71131423326603
oct174521512541
947161253022
1016731510113
11710655720a
1232ab422a55
1317684a8a56
14b4a18d173
1567dd3e728
hex3e5469561

16731510113 has 4 divisors (see below), whose sum is σ = 16784291220. Its totient is φ = 16678729008.

The previous prime is 16731510091. The next prime is 16731510151. The reversal of 16731510113 is 31101513761.

It is a happy number.

16731510113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6124158049 + 10607352064 = 78257^2 + 102992^2 .

It is a cyclic number.

It is not a de Polignac number, because 16731510113 - 26 = 16731510049 is a prime.

It is a super-2 number, since 2×167315101132 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16761510113) 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, 26390078 + ... + 26390711.

It is an arithmetic number, because the mean of its divisors is an integer number (4196072805).

Almost surely, 216731510113 is an apocalyptic number.

It is an amenable number.

16731510113 is a deficient number, since it is larger than the sum of its proper divisors (52781107).

16731510113 is an equidigital number, since it uses as much as digits as its factorization.

16731510113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52781106.

The product of its (nonzero) digits is 1890, while the sum is 29.

The spelling of 16731510113 in words is "sixteen billion, seven hundred thirty-one million, five hundred ten thousand, one hundred thirteen".

Divisors: 1 317 52780789 16731510113