Base | Representation |
---|---|
bin | 110001111001… |
… | …011101111111 |
3 | 220121120000000 |
4 | 301321131333 |
5 | 11322033242 |
6 | 1144205343 |
7 | 216116262 |
oct | 61713577 |
9 | 26546000 |
10 | 13080447 |
11 | 7424596 |
12 | 4469853 |
13 | 292ca13 |
14 | 1a46cd9 |
15 | 1235a4c |
hex | c7977f |
13080447 has 16 divisors (see below), whose sum is σ = 19620960. Its totient is φ = 8718840.
The previous prime is 13080443. The next prime is 13080449. The reversal of 13080447 is 74408031.
It is not a de Polignac number, because 13080447 - 22 = 13080443 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a self number, because there is not a number n which added to its sum of digits gives 13080447.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13080443) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 804 + ... + 5177.
It is an arithmetic number, because the mean of its divisors is an integer number (1226310).
Almost surely, 213080447 is an apocalyptic number.
13080447 is a deficient number, since it is larger than the sum of its proper divisors (6540513).
13080447 is an frugal number, since it uses more digits than its factorization.
13080447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6002 (or 5984 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 13080447 is about 3616.6900613683. The cubic root of 13080447 is about 235.6174917809.
Adding to 13080447 its reverse (74408031), we get a palindrome (87488478).
The spelling of 13080447 in words is "thirteen million, eighty thousand, four hundred forty-seven".
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