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13685148 = 2232973919
BaseRepresentation
bin110100001101…
…000110011100
3221202021111100
4310031012130
512000411043
61205153100
7224215251
oct64150634
927667440
1013685148
1177a7944
1246bb790
132ab2029
141b63428
151304cd3
hexd0d19c

13685148 has 36 divisors (see below), whose sum is σ = 34958560. Its totient is φ = 4513536.

The previous prime is 13685141. The next prime is 13685159. The reversal of 13685148 is 84158631.

13685148 is a `hidden beast` number, since 136 + 8 + 514 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13685141) 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 11 ways as a sum of consecutive naturals, for example, 1533 + ... + 5451.

Almost surely, 213685148 is an apocalyptic number.

13685148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13685148 is an abundant number, since it is smaller than the sum of its proper divisors (21273412).

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

13685148 is a wasteful number, since it uses less digits than its factorization.

13685148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026 (or 4021 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 13685148 is about 3699.3442662180. The cubic root of 13685148 is about 239.1937528896.

The spelling of 13685148 in words is "thirteen million, six hundred eighty-five thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 97 194 291 388 582 873 1164 1746 3492 3919 7838 11757 15676 23514 35271 47028 70542 141084 380143 760286 1140429 1520572 2280858 3421287 4561716 6842574 13685148