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13283889 = 36766089
BaseRepresentation
bin110010101011…
…001000110001
3220222220001220
4302223020301
511400041024
61152415253
7220624353
oct62531061
926886056
1013283889
117553423
124547529
1329a14b8
141a9b0d3
151275e79
hexcab231

13283889 has 8 divisors (see below), whose sum is σ = 17976480. Its totient is φ = 8723616.

The previous prime is 13283843. The next prime is 13283891. The reversal of 13283889 is 98838231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13283889 - 29 = 13283377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13283889.

It is not an unprimeable number, because it can be changed into a prime (13283789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32844 + ... + 33245.

It is an arithmetic number, because the mean of its divisors is an integer number (2247060).

Almost surely, 213283889 is an apocalyptic number.

It is an amenable number.

13283889 is a deficient number, since it is larger than the sum of its proper divisors (4692591).

13283889 is an equidigital number, since it uses as much as digits as its factorization.

13283889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66159.

The product of its digits is 82944, while the sum is 42.

The square root of 13283889 is about 3644.7069841072. The cubic root of 13283889 is about 236.8327435338.

The spelling of 13283889 in words is "thirteen million, two hundred eighty-three thousand, eight hundred eighty-nine".

Divisors: 1 3 67 201 66089 198267 4427963 13283889