Base | Representation |
---|---|
bin | 110011001101… |
… | …001000100110 |
3 | 221020222002102 |
4 | 303031020212 |
5 | 11414020032 |
6 | 1155412102 |
7 | 222044345 |
oct | 63151046 |
9 | 27228072 |
10 | 13423142 |
11 | 7639007 |
12 | 45b4032 |
13 | 2a1c9b5 |
14 | 1ad5b5c |
15 | 12a2362 |
hex | ccd226 |
13423142 has 4 divisors (see below), whose sum is σ = 20134716. Its totient is φ = 6711570.
The previous prime is 13423117. The next prime is 13423199. The reversal of 13423142 is 24132431.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24132431 = 503 ⋅47977.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3355784 + ... + 3355787.
It is an arithmetic number, because the mean of its divisors is an integer number (5033679).
Almost surely, 213423142 is an apocalyptic number.
13423142 is a deficient number, since it is larger than the sum of its proper divisors (6711574).
13423142 is an equidigital number, since it uses as much as digits as its factorization.
13423142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6711573.
The product of its digits is 576, while the sum is 20.
The square root of 13423142 is about 3663.7606362862. The cubic root of 13423142 is about 237.6574291415.
Adding to 13423142 its reverse (24132431), we get a palindrome (37555573).
The spelling of 13423142 in words is "thirteen million, four hundred twenty-three thousand, one hundred forty-two".
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