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13204801 = 17776753
BaseRepresentation
bin110010010111…
…110101000001
3220211212120201
4302113311001
511340023201
61151005201
7220144651
oct62276501
926755521
1013204801
1174a9a65
124509801
1329744bc
141a7a361
15125c801
hexc97d41

13204801 has 4 divisors (see below), whose sum is σ = 13981572. Its totient is φ = 12428032.

The previous prime is 13204787. The next prime is 13204811. The reversal of 13204801 is 10840231.

13204801 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, and also an emirpimes, since its reverse is a distinct semiprime: 10840231 = 19356167.

It can be written as a sum of positive squares in 2 ways, for example, as 4060225 + 9144576 = 2015^2 + 3024^2 .

It is a cyclic number.

It is not a de Polignac number, because 13204801 - 27 = 13204673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13204811) 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, 388360 + ... + 388393.

It is an arithmetic number, because the mean of its divisors is an integer number (3495393).

Almost surely, 213204801 is an apocalyptic number.

It is an amenable number.

13204801 is a deficient number, since it is larger than the sum of its proper divisors (776771).

13204801 is an equidigital number, since it uses as much as digits as its factorization.

13204801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776770.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 13204801 is about 3633.8410807299. The cubic root of 13204801 is about 236.3617990309.

The spelling of 13204801 in words is "thirteen million, two hundred four thousand, eight hundred one".

Divisors: 1 17 776753 13204801