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13201808 = 241943427
BaseRepresentation
bin110010010111…
…000110010000
3220211201110212
4302113012100
511334424213
61150543252
7220133144
oct62270620
926751425
1013201808
1174a7794
124507b28
132973029
141a79224
15125b9a8
hexc97190

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".

Divisors: 1 2 4 8 16 19 38 76 152 304 43427 86854 173708 347416 694832 825113 1650226 3300452 6600904 13201808