Base | Representation |
---|---|
bin | 110011011000… |
… | …100001101101 |
3 | 221100100002200 |
4 | 303120201231 |
5 | 11422013210 |
6 | 1200412113 |
7 | 222330366 |
oct | 63304155 |
9 | 27310080 |
10 | 13469805 |
11 | 7670078 |
12 | 4617039 |
13 | 2a37ccb |
14 | 1b08b6d |
15 | 12b10c0 |
hex | cd886d |
13469805 has 12 divisors (see below), whose sum is σ = 23347740. Its totient is φ = 7183872.
The previous prime is 13469773. The next prime is 13469809. The reversal of 13469805 is 50896431.
13469805 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 2 ways, for example, as 9771876 + 3697929 = 3126^2 + 1923^2 .
It is not a de Polignac number, because 13469805 - 25 = 13469773 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 13469805.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13469809) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149620 + ... + 149709.
It is an arithmetic number, because the mean of its divisors is an integer number (1945645).
Almost surely, 213469805 is an apocalyptic number.
13469805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13469805 is a deficient number, since it is larger than the sum of its proper divisors (9877935).
13469805 is a wasteful number, since it uses less digits than its factorization.
13469805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 299340 (or 299337 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The square root of 13469805 is about 3670.1232949317. The cubic root of 13469805 is about 237.9325009253.
The spelling of 13469805 in words is "thirteen million, four hundred sixty-nine thousand, eight hundred five".
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