Search a number
-
+
43856 = 242741
BaseRepresentation
bin1010101101010000
32020011022
422231100
52400411
6535012
7241601
oct125520
966138
1043856
112aa4a
1221468
1316c67
1411da8
15cedb
hexab50

43856 has 10 divisors (see below), whose sum is σ = 85002. Its totient is φ = 21920.

The previous prime is 43853. The next prime is 43867. The reversal of 43856 is 65834.

It can be written as a sum of positive squares in only one way, i.e., 33856 + 10000 = 184^2 + 100^2 .

It is a d-powerful number, because it can be written as 47 + 39 + 8 + 5 + 65 .

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1355 + ... + 1386.

243856 is an apocalyptic number.

It is an amenable number.

43856 is a deficient number, since it is larger than the sum of its proper divisors (41146).

43856 is a wasteful number, since it uses less digits than its factorization.

43856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749 (or 2743 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 43856 is about 209.4182418033. The cubic root of 43856 is about 35.2649283717.

It can be divided in two parts, 438 and 56, that added together give a palindrome (494).

The spelling of 43856 in words is "forty-three thousand, eight hundred fifty-six".

Divisors: 1 2 4 8 16 2741 5482 10964 21928 43856