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13101311 = 33139581
BaseRepresentation
bin110001111110…
…100011111111
3220122121121202
4301332203333
511323220221
61144450115
7216234146
oct61764377
926577552
1013101311
117439233
12447993b
132939372
141a5075d
15123bd0b
hexc7e8ff

13101311 has 4 divisors (see below), whose sum is σ = 13141224. Its totient is φ = 13061400.

The previous prime is 13101307. The next prime is 13101331. The reversal of 13101311 is 11310131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13101311 - 22 = 13101307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13101292 and 13101301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19460 + ... + 20121.

It is an arithmetic number, because the mean of its divisors is an integer number (3285306).

Almost surely, 213101311 is an apocalyptic number.

13101311 is a deficient number, since it is larger than the sum of its proper divisors (39913).

13101311 is an equidigital number, since it uses as much as digits as its factorization.

13101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39912.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 13101311 is about 3619.5733173953. The cubic root of 13101311 is about 235.7426993253.

Adding to 13101311 its reverse (11310131), we get a palindrome (24411442).

The spelling of 13101311 in words is "thirteen million, one hundred one thousand, three hundred eleven".

Divisors: 1 331 39581 13101311