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13923886841 = 29480134029
BaseRepresentation
bin11001111011110110…
…11010011011111001
31022221101020201221122
430331323122123321
5212004003334331
610221353115025
71002022041164
oct147573323371
938841221848
1013923886841
1159a57422a7
1228470b8a75
13140b90c9c7
14961342adb
155675eb17b
hex33deda6f9

13923886841 has 4 divisors (see below), whose sum is σ = 14404020900. Its totient is φ = 13443752784.

The previous prime is 13923886811. The next prime is 13923886849. The reversal of 13923886841 is 14868832931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14868832931 = 23646470997.

It can be written as a sum of positive squares in 2 ways, for example, as 9448812025 + 4475074816 = 97205^2 + 66896^2 .

It is a cyclic number.

It is not a de Polignac number, because 13923886841 - 26 = 13923886777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13923886849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240066986 + ... + 240067043.

It is an arithmetic number, because the mean of its divisors is an integer number (3601005225).

Almost surely, 213923886841 is an apocalyptic number.

It is an amenable number.

13923886841 is a deficient number, since it is larger than the sum of its proper divisors (480134059).

13923886841 is an equidigital number, since it uses as much as digits as its factorization.

13923886841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480134058.

The product of its digits is 1990656, while the sum is 53.

The spelling of 13923886841 in words is "thirteen billion, nine hundred twenty-three million, eight hundred eighty-six thousand, eight hundred forty-one".

Divisors: 1 29 480134029 13923886841