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13013201 = 27674703
BaseRepresentation
bin110001101001…
…000011010001
3220111010202102
4301221003101
511312410301
61142530145
7215416235
oct61510321
926433672
1013013201
117389013
124436955
132908226
141a2a5c5
151220b6b
hexc690d1

13013201 has 4 divisors (see below), whose sum is σ = 13020672. Its totient is φ = 13005732.

The previous prime is 13013197. The next prime is 13013227. The reversal of 13013201 is 10231031.

13013201 is digitally balanced in base 3, 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 a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10231031 = 31332687.

It is a cyclic number.

It is not a de Polignac number, because 13013201 - 22 = 13013197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013261) 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, 416 + ... + 5118.

It is an arithmetic number, because the mean of its divisors is an integer number (3255168).

Almost surely, 213013201 is an apocalyptic number.

It is an amenable number.

13013201 is a deficient number, since it is larger than the sum of its proper divisors (7471).

13013201 is an equidigital number, since it uses as much as digits as its factorization.

13013201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13013201 is about 3607.3814602839. The cubic root of 13013201 is about 235.2130315118.

Adding to 13013201 its reverse (10231031), we get a palindrome (23244232).

It can be divided in two parts, 130 and 13201, that added together give a palindrome (13331).

The spelling of 13013201 in words is "thirteen million, thirteen thousand, two hundred one".

Divisors: 1 2767 4703 13013201