Base | Representation |
---|---|
bin | 110011001100… |
… | …111101001101 |
3 | 221020221002102 |
4 | 303030331031 |
5 | 11414004123 |
6 | 1155404445 |
7 | 222042254 |
oct | 63147515 |
9 | 27227072 |
10 | 13422413 |
11 | 7638504 |
12 | 45b3725 |
13 | 2a1c574 |
14 | 1ad579b |
15 | 12a2028 |
hex | cccf4d |
13422413 has 4 divisors (see below), whose sum is σ = 13429920. Its totient is φ = 13414908.
The previous prime is 13422397. The next prime is 13422419. The reversal of 13422413 is 31422431.
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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31422431 = 3329 ⋅9439.
It is a cyclic number.
It is not a de Polignac number, because 13422413 - 24 = 13422397 is a prime.
It is a super-3 number, since 3×134224133 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13422419) 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, 656 + ... + 5222.
It is an arithmetic number, because the mean of its divisors is an integer number (3357480).
Almost surely, 213422413 is an apocalyptic number.
It is an amenable number.
13422413 is a deficient number, since it is larger than the sum of its proper divisors (7507).
13422413 is an equidigital number, since it uses as much as digits as its factorization.
13422413 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7506.
The product of its digits is 576, while the sum is 20.
The square root of 13422413 is about 3663.6611469949. The cubic root of 13422413 is about 237.6531267360.
Adding to 13422413 its reverse (31422431), we get a palindrome (44844844).
The spelling of 13422413 in words is "thirteen million, four hundred twenty-two thousand, four hundred thirteen".
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