Search a number
-
+
13112244401 = 61132144977
BaseRepresentation
bin11000011011000110…
…01111100010110001
31020211211000000211112
430031203033202301
5203323213310101
610005040523105
7642635144534
oct141543174261
936754000745
1013112244401
11561957a323
12265b320495
13130c7117c9
148c5626a1b
1551b2246bb
hex30d8cf8b1

13112244401 has 4 divisors (see below), whose sum is σ = 13114395492. Its totient is φ = 13110093312.

The previous prime is 13112244367. The next prime is 13112244419. The reversal of 13112244401 is 10444221131.

13112244401 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: 10444221131 = 19549695849.

It can be written as a sum of positive squares in 2 ways, for example, as 11177564176 + 1934680225 = 105724^2 + 43985^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112244401 - 222 = 13108050097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112244461) 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, 1066376 + ... + 1078601.

It is an arithmetic number, because the mean of its divisors is an integer number (3278598873).

Almost surely, 213112244401 is an apocalyptic number.

It is an amenable number.

13112244401 is a deficient number, since it is larger than the sum of its proper divisors (2151091).

13112244401 is an equidigital number, since it uses as much as digits as its factorization.

13112244401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151090.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 13112244401 its reverse (10444221131), we get a palindrome (23556465532).

The spelling of 13112244401 in words is "thirteen billion, one hundred twelve million, two hundred forty-four thousand, four hundred one".

Divisors: 1 6113 2144977 13112244401