Base | Representation |
---|---|
bin | 11000011101001110… |
… | …00110110000101101 |
3 | 1020220001110211212202 |
4 | 30032213012300231 |
5 | 203342242043341 |
6 | 10010514111245 |
7 | 643242310103 |
oct | 141647066055 |
9 | 36801424782 |
10 | 13130034221 |
11 | 5628620057 |
12 | 266527b525 |
13 | 13132ccc25 |
14 | 8c7b37c73 |
15 | 51ca8a79b |
hex | 30e9c6c2d |
13130034221 has 4 divisors (see below), whose sum is σ = 13553583744. Its totient is φ = 12706484700.
The previous prime is 13130034179. The next prime is 13130034241. The reversal of 13130034221 is 12243003131.
13130034221 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 13130034221 - 218 = 13129772077 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13130034193 and 13130034202.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13130034241) 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, 211774715 + ... + 211774776.
It is an arithmetic number, because the mean of its divisors is an integer number (3388395936).
Almost surely, 213130034221 is an apocalyptic number.
It is an amenable number.
13130034221 is a deficient number, since it is larger than the sum of its proper divisors (423549523).
13130034221 is an equidigital number, since it uses as much as digits as its factorization.
13130034221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 423549522.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 13130034221 its reverse (12243003131), we get a palindrome (25373037352).
The spelling of 13130034221 in words is "thirteen billion, one hundred thirty million, thirty-four thousand, two hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •