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13786386 = 232297731
BaseRepresentation
bin110100100101…
…110100010010
3221221102100220
4310211310102
512012131021
61211253510
7225116355
oct64456422
927842326
1013786386
117866a09
12474a296
132b19133
141b8c29c
151324cc6
hexd25d12

13786386 has 8 divisors (see below), whose sum is σ = 27572784. Its totient is φ = 4595460.

The previous prime is 13786379. The next prime is 13786387. The reversal of 13786386 is 68368731.

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

13786386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (13786387) 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 3 ways as a sum of consecutive naturals, for example, 1148860 + ... + 1148871.

It is an arithmetic number, because the mean of its divisors is an integer number (3446598).

Almost surely, 213786386 is an apocalyptic number.

13786386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13786386 is a wasteful number, since it uses less digits than its factorization.

13786386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297736.

The product of its digits is 145152, while the sum is 42.

The square root of 13786386 is about 3713.0022892533. The cubic root of 13786386 is about 239.7821286657.

The spelling of 13786386 in words is "thirteen million, seven hundred eighty-six thousand, three hundred eighty-six".

Divisors: 1 2 3 6 2297731 4595462 6893193 13786386