Search a number
-
+
3894 = 231159
BaseRepresentation
bin111100110110
312100020
4330312
5111034
630010
714232
oct7466
95306
103894
112a20
122306
131a07
1415c2
151249
hexf36

3894 has 16 divisors (see below), whose sum is σ = 8640. Its totient is φ = 1160.

The previous prime is 3889. The next prime is 3907. The reversal of 3894 is 4983.

Subtracting 3894 from its reverse (4983), we obtain a square (1089 = 332).

It can be divided in two parts, 389 and 4, that added together give a palindrome (393).

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

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37 + ... + 95.

It is an arithmetic number, because the mean of its divisors is an integer number (540).

23894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4320).

3894 is an abundant number, since it is smaller than the sum of its proper divisors (4746).

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

3894 is a wasteful number, since it uses less digits than its factorization.

3894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75.

The product of its digits is 864, while the sum is 24.

The square root of 3894 is about 62.4019230473. The cubic root of 3894 is about 15.7325329160.

The spelling of 3894 in words is "three thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 11 22 33 59 66 118 177 354 649 1298 1947 3894