Base | Representation |
---|---|
bin | 110010101010… |
… | …010100000000 |
3 | 220222201102211 |
4 | 302222110000 |
5 | 11344434022 |
6 | 1152351504 |
7 | 220611460 |
oct | 62522400 |
9 | 26881384 |
10 | 13280512 |
11 | 7550933 |
12 | 4545594 |
13 | 299cabb |
14 | 1a99ba0 |
15 | 1274e77 |
hex | caa500 |
13280512 has 36 divisors (see below), whose sum is σ = 30300256. Its totient is φ = 5690880.
The previous prime is 13280503. The next prime is 13280573. The reversal of 13280512 is 21508231.
It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.
It is a nialpdrome in base 16.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914 + ... + 5497.
Almost surely, 213280512 is an apocalyptic number.
It is an amenable number.
13280512 is an abundant number, since it is smaller than the sum of its proper divisors (17019744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13280512 is an frugal number, since it uses more digits than its factorization.
13280512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7434 (or 7420 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 22.
The square root of 13280512 is about 3644.2436801070. The cubic root of 13280512 is about 236.8126728061.
Adding to 13280512 its reverse (21508231), we get a palindrome (34788743).
The spelling of 13280512 in words is "thirteen million, two hundred eighty thousand, five hundred twelve".
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