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13605928201 = 24533554597
BaseRepresentation
bin11001010101111100…
…11111110100001001
31022010012221202200201
430222332133310021
5210331104200301
610130034132201
7661111324105
oct145276376411
938105852621
1013605928201
115852212268
122778721061
13138aa949b8
14931016905
15549741201
hex32af9fd09

13605928201 has 4 divisors (see below), whose sum is σ = 13606507332. Its totient is φ = 13605349072.

The previous prime is 13605928163. The next prime is 13605928207. The reversal of 13605928201 is 10282950631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10282950631 = 51531995527.

It can be written as a sum of positive squares in 2 ways, for example, as 4206819600 + 9399108601 = 64860^2 + 96949^2 .

It is a cyclic number.

It is not a de Polignac number, because 13605928201 - 27 = 13605928073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13605928207) 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, 252766 + ... + 301831.

It is an arithmetic number, because the mean of its divisors is an integer number (3401626833).

Almost surely, 213605928201 is an apocalyptic number.

It is an amenable number.

13605928201 is a deficient number, since it is larger than the sum of its proper divisors (579131).

13605928201 is an equidigital number, since it uses as much as digits as its factorization.

13605928201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579130.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 13605928201 in words is "thirteen billion, six hundred five million, nine hundred twenty-eight thousand, two hundred one".

Divisors: 1 24533 554597 13605928201