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14256886681 = 171129742817
BaseRepresentation
bin11010100011100011…
…01101001110011001
31100210120211212212001
431101301231032121
5213144230333211
610314410321001
71013204352202
oct152161551631
940716755761
1014256886681
116056705a84
12291a729161
1314628c302b
149936665a9
15586977ac1
hex351c6d399

14256886681 has 8 divisors (see below), whose sum is σ = 15108918120. Its totient is φ = 13406343168.

The previous prime is 14256886627. The next prime is 14256886687. The reversal of 14256886681 is 18668865241.

It can be written as a sum of positive squares in 4 ways, for example, as 4347225 + 14252539456 = 2085^2 + 119384^2 .

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 14256886681 - 29 = 14256886169 is a prime.

It is a super-2 number, since 2×142568866812 (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 (14256886687) 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, 352216 + ... + 390601.

It is an arithmetic number, because the mean of its divisors is an integer number (1888614765).

Almost surely, 214256886681 is an apocalyptic number.

It is an amenable number.

14256886681 is a deficient number, since it is larger than the sum of its proper divisors (852031439).

14256886681 is a wasteful number, since it uses less digits than its factorization.

14256886681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743963.

The product of its digits is 4423680, while the sum is 55.

The spelling of 14256886681 in words is "fourteen billion, two hundred fifty-six million, eight hundred eighty-six thousand, six hundred eighty-one".

Divisors: 1 17 1129 19193 742817 12627889 838640393 14256886681