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13606050643 = 83163928321
BaseRepresentation
bin11001010101111101…
…11101101101010011
31022010020011222122121
430222332331231103
5210331122110033
610130040515111
7661112344063
oct145276755523
938106158577
1013606050643
115852296259
12277877ba97
13138ab08653
149310493a3
1554976762d
hex32afbdb53

13606050643 has 4 divisors (see below), whose sum is σ = 13769979048. Its totient is φ = 13442122240.

The previous prime is 13606050641. The next prime is 13606050697. The reversal of 13606050643 is 34605060631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34605060631 = 144232399297.

It is not a de Polignac number, because 13606050643 - 21 = 13606050641 is a prime.

It is a super-2 number, since 2×136060506432 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13606050599 and 13606050608.

It is not an unprimeable number, because it can be changed into a prime (13606050641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81964078 + ... + 81964243.

It is an arithmetic number, because the mean of its divisors is an integer number (3442494762).

Almost surely, 213606050643 is an apocalyptic number.

13606050643 is a deficient number, since it is larger than the sum of its proper divisors (163928405).

13606050643 is an equidigital number, since it uses as much as digits as its factorization.

13606050643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163928404.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 13606050643 in words is "thirteen billion, six hundred six million, fifty thousand, six hundred forty-three".

Divisors: 1 83 163928321 13606050643