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3826 = 21913
BaseRepresentation
bin111011110010
312020201
4323302
5110301
625414
714104
oct7362
95221
103826
112969
12226a
131984
141574
151201
hexef2

3826 has 4 divisors (see below), whose sum is σ = 5742. Its totient is φ = 1912.

The previous prime is 3823. The next prime is 3833. The reversal of 3826 is 6283.

Adding to 3826 its product of digits (288), we get a palindrome (4114).

It can be divided in two parts, 38 and 26, that added together give a 6-th power (64 = 26).

3826 = T49 + T50 + T51.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6283 = 61103.

It can be written as a sum of positive squares in only one way, i.e., 2601 + 1225 = 51^2 + 35^2 .

It is a plaindrome in base 12.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (3821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955 + ... + 958.

23826 is an apocalyptic number.

3826 is the 51-st centered triangular number.

3826 is a deficient number, since it is larger than the sum of its proper divisors (1916).

3826 is a wasteful number, since it uses less digits than its factorization.

3826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915.

The product of its digits is 288, while the sum is 19.

The square root of 3826 is about 61.8546683768. The cubic root of 3826 is about 15.6404167837.

The spelling of 3826 in words is "three thousand, eight hundred twenty-six".

Divisors: 1 2 1913 3826