Base | Representation |
---|---|
bin | 110010010111… |
… | …000110010000 |
3 | 220211201110212 |
4 | 302113012100 |
5 | 11334424213 |
6 | 1150543252 |
7 | 220133144 |
oct | 62270620 |
9 | 26751425 |
10 | 13201808 |
11 | 74a7794 |
12 | 4507b28 |
13 | 2973029 |
14 | 1a79224 |
15 | 125b9a8 |
hex | c97190 |
13201808 has 20 divisors (see below), whose sum is σ = 26925360. Its totient is φ = 6253344.
The previous prime is 13201801. The next prime is 13201841. The reversal of 13201808 is 80810231.
It is not an unprimeable number, because it can be changed into a prime (13201801) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21410 + ... + 22017.
It is an arithmetic number, because the mean of its divisors is an integer number (1346268).
Almost surely, 213201808 is an apocalyptic number.
It is an amenable number.
13201808 is an abundant number, since it is smaller than the sum of its proper divisors (13723552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13201808 is a wasteful number, since it uses less digits than its factorization.
13201808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 43454 (or 43448 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 23.
The square root of 13201808 is about 3633.4292342084. The cubic root of 13201808 is about 236.3439397609.
The spelling of 13201808 in words is "thirteen million, two hundred one thousand, eight hundred eight".
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