Base | Representation |
---|---|
bin | 11000010001101010… |
… | …00100011000110111 |
3 | 1020122021221120210010 |
4 | 30020311010120313 |
5 | 203142423444343 |
6 | 5553131031303 |
7 | 640653636402 |
oct | 141065043067 |
9 | 36567846703 |
10 | 13033031223 |
11 | 5588896293 |
12 | 263889b533 |
13 | 12c91985c4 |
14 | 8b8cc6d39 |
15 | 5142c8d33 |
hex | 308d44637 |
13033031223 has 4 divisors (see below), whose sum is σ = 17377374968. Its totient is φ = 8688687480.
The previous prime is 13033031183. The next prime is 13033031227. The reversal of 13033031223 is 32213033031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32213033031 = 3 ⋅10737677677.
It is not a de Polignac number, because 13033031223 - 26 = 13033031159 is a prime.
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 13033031223.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13033031227) 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, 2172171868 + ... + 2172171873.
It is an arithmetic number, because the mean of its divisors is an integer number (4344343742).
Almost surely, 213033031223 is an apocalyptic number.
13033031223 is a deficient number, since it is larger than the sum of its proper divisors (4344343745).
13033031223 is an equidigital number, since it uses as much as digits as its factorization.
13033031223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4344343744.
The product of its (nonzero) digits is 972, while the sum is 21.
Adding to 13033031223 its reverse (32213033031), we get a palindrome (45246064254).
The spelling of 13033031223 in words is "thirteen billion, thirty-three million, thirty-one thousand, two hundred twenty-three".
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