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13844 = 223461
BaseRepresentation
bin11011000010100
3200222202
43120110
5420334
6144032
755235
oct33024
920882
1013844
11a446
128018
1363bc
14508c
15417e
hex3614

13844 has 6 divisors (see below), whose sum is σ = 24234. Its totient is φ = 6920.

The previous prime is 13841. The next prime is 13859. The reversal of 13844 is 44831.

It can be written as a sum of positive squares in only one way, i.e., 10000 + 3844 = 100^2 + 62^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1727 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (4039).

213844 is an apocalyptic number.

It is an amenable number.

13844 is a deficient number, since it is larger than the sum of its proper divisors (10390).

13844 is a wasteful number, since it uses less digits than its factorization.

13844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3463 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 13844 is about 117.6605286407. The cubic root of 13844 is about 24.0115684969.

Subtracting from 13844 its sum of digits (20), we obtain a cube (13824 = 243).

The spelling of 13844 in words is "thirteen thousand, eight hundred forty-four".

Divisors: 1 2 4 3461 6922 13844