Base | Representation |
---|---|
bin | 11000011100010010… |
… | …11011010111100111 |
3 | 1020212111211120211221 |
4 | 30032021123113213 |
5 | 203333244114221 |
6 | 10010035241211 |
7 | 643116215125 |
oct | 141611332747 |
9 | 36774746757 |
10 | 13122254311 |
11 | 5624196981 |
12 | 2662749207 |
13 | 1311807a2a |
14 | 8c6ab0915 |
15 | 51c050541 |
hex | 30e25b5e7 |
13122254311 has 4 divisors (see below), whose sum is σ = 13124654800. Its totient is φ = 13119853824.
The previous prime is 13122254309. The next prime is 13122254317. The reversal of 13122254311 is 11345222131.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11345222131 = 71 ⋅159791861.
It is a cyclic number.
It is not a de Polignac number, because 13122254311 - 21 = 13122254309 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 (13122254317) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192026 + ... + 1202983.
It is an arithmetic number, because the mean of its divisors is an integer number (3281163700).
Almost surely, 213122254311 is an apocalyptic number.
13122254311 is a deficient number, since it is larger than the sum of its proper divisors (2400489).
13122254311 is an equidigital number, since it uses as much as digits as its factorization.
13122254311 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2400488.
The product of its digits is 1440, while the sum is 25.
Adding to 13122254311 its reverse (11345222131), we get a palindrome (24467476442).
The spelling of 13122254311 in words is "thirteen billion, one hundred twenty-two million, two hundred fifty-four thousand, three hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.087 sec. • engine limits •