Base | Representation |
---|---|
bin | 110010001000… |
… | …100110110011 |
3 | 220201201001110 |
4 | 302020212303 |
5 | 11331024301 |
6 | 1145404403 |
7 | 216465120 |
oct | 62104663 |
9 | 26651043 |
10 | 13142451 |
11 | 7467133 |
12 | 4499703 |
13 | 2951cca |
14 | 1a61747 |
15 | 12490d6 |
hex | c889b3 |
13142451 has 8 divisors (see below), whose sum is σ = 20026624. Its totient is φ = 7509960.
The previous prime is 13142449. The next prime is 13142473. The reversal of 13142451 is 15424131.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 13142451 - 21 = 13142449 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 625831 = 13142451 / (1 + 3 + 1 + 4 + 2 + 4 + 5 + 1).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13142401) by changing a digit.
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 in 7 ways as a sum of consecutive naturals, for example, 312895 + ... + 312936.
It is an arithmetic number, because the mean of its divisors is an integer number (2503328).
Almost surely, 213142451 is an apocalyptic number.
13142451 is a deficient number, since it is larger than the sum of its proper divisors (6884173).
13142451 is an equidigital number, since it uses as much as digits as its factorization.
13142451 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 625841.
The product of its digits is 480, while the sum is 21.
The square root of 13142451 is about 3625.2518533200. The cubic root of 13142451 is about 235.9891968147.
Adding to 13142451 its reverse (15424131), we get a palindrome (28566582).
The spelling of 13142451 in words is "thirteen million, one hundred forty-two thousand, four hundred fifty-one".
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