Search a number
-
+
13220120101 = 27148782731
BaseRepresentation
bin11000100111111101…
…10000011000100101
31021010022222200110211
430103332300120211
5204033322320401
610023453015421
7645415111126
oct142376603045
937108880424
1013220120101
11567445a9a1
12268b484571
131328b81c96
148d5aa804d
15525932951
hex313fb0625

13220120101 has 4 divisors (see below), whose sum is σ = 13268903104. Its totient is φ = 13171337100.

The previous prime is 13220120093. The next prime is 13220120107. The reversal of 13220120101 is 10102102231.

13220120101 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13220120101 - 23 = 13220120093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220120107) 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, 24391095 + ... + 24391636.

It is an arithmetic number, because the mean of its divisors is an integer number (3317225776).

Almost surely, 213220120101 is an apocalyptic number.

It is an amenable number.

13220120101 is a deficient number, since it is larger than the sum of its proper divisors (48783003).

13220120101 is an equidigital number, since it uses as much as digits as its factorization.

13220120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48783002.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13220120101 its reverse (10102102231), we get a palindrome (23322222332).

The spelling of 13220120101 in words is "thirteen billion, two hundred twenty million, one hundred twenty thousand, one hundred one".

Divisors: 1 271 48782731 13220120101