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13055685 = 357311923
BaseRepresentation
bin110001110011…
…011011000101
3220120022000220
4301303123011
511320240220
61143454553
7215654136
oct61633305
926508026
1013055685
117407a25
124457459
132921676
141a3bc8d
15122d540
hexc736c5

13055685 has 16 divisors (see below), whose sum is σ = 21177024. Its totient is φ = 6867072.

The previous prime is 13055683. The next prime is 13055701. The reversal of 13055685 is 58655031.

It is not a de Polignac number, because 13055685 - 21 = 13055683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4867 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (1323564).

Almost surely, 213055685 is an apocalyptic number.

13055685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13055685 is a deficient number, since it is larger than the sum of its proper divisors (8121339).

13055685 is a wasteful number, since it uses less digits than its factorization.

13055685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 13055685 is about 3613.2651438830. The cubic root of 13055685 is about 235.4687189396.

The spelling of 13055685 in words is "thirteen million, fifty-five thousand, six hundred eighty-five".

Divisors: 1 3 5 15 73 219 365 1095 11923 35769 59615 178845 870379 2611137 4351895 13055685