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13100113 = 131007701
BaseRepresentation
bin110001111110…
…010001010001
3220122112222101
4301332101101
511323200423
61144440401
7216230515
oct61762121
926575871
1013100113
117438344
124479101
132938960
141a50145
15123b7ad
hexc7e451

13100113 has 4 divisors (see below), whose sum is σ = 14107828. Its totient is φ = 12092400.

The previous prime is 13100111. The next prime is 13100123. The reversal of 13100113 is 31100131.

13100113 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: 31100131 = 191636849.

It can be written as a sum of positive squares in 2 ways, for example, as 2289169 + 10810944 = 1513^2 + 3288^2 .

It is a cyclic number.

It is not a de Polignac number, because 13100113 - 21 = 13100111 is a prime.

It is a super-2 number, since 2×131001132 = 343225921225538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13100113.

It is not an unprimeable number, because it can be changed into a prime (13100111) 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, 503838 + ... + 503863.

It is an arithmetic number, because the mean of its divisors is an integer number (3526957).

Almost surely, 213100113 is an apocalyptic number.

13100113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13100113 is a deficient number, since it is larger than the sum of its proper divisors (1007715).

13100113 is a wasteful number, since it uses less digits than its factorization.

13100113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007714.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 13100113 is about 3619.4078244928. The cubic root of 13100113 is about 235.7355135721.

Adding to 13100113 its reverse (31100131), we get a palindrome (44200244).

The spelling of 13100113 in words is "thirteen million, one hundred thousand, one hundred thirteen".

Divisors: 1 13 1007701 13100113