Base | Representation |
---|---|
bin | 110010001000… |
… | …100100110011 |
3 | 220201200212201 |
4 | 302020210303 |
5 | 11331023243 |
6 | 1145404031 |
7 | 216464545 |
oct | 62104463 |
9 | 26650781 |
10 | 13142323 |
11 | 7467027 |
12 | 4499617 |
13 | 2951c2c |
14 | 1a61695 |
15 | 124904d |
hex | c88933 |
13142323 has 4 divisors (see below), whose sum is σ = 13170240. Its totient is φ = 13114408.
The previous prime is 13142321. The next prime is 13142333. The reversal of 13142323 is 32324131.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 13142323 - 21 = 13142321 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 13142323.
It is not an unprimeable number, because it can be changed into a prime (13142321) 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, 13240 + ... + 14197.
It is an arithmetic number, because the mean of its divisors is an integer number (3292560).
Almost surely, 213142323 is an apocalyptic number.
13142323 is a deficient number, since it is larger than the sum of its proper divisors (27917).
13142323 is an equidigital number, since it uses as much as digits as its factorization.
13142323 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27916.
The product of its digits is 432, while the sum is 19.
The square root of 13142323 is about 3625.2341993311. The cubic root of 13142323 is about 235.9884306787.
Adding to 13142323 its reverse (32324131), we get a palindrome (45466454).
The spelling of 13142323 in words is "thirteen million, one hundred forty-two thousand, three hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •