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3983894 = 21991947
BaseRepresentation
bin1111001100101000010110
321111101212122
433030220112
52004441034
6221215542
745601565
oct17145026
97441778
103983894
112281182
1214015b2
13a96445
14759bdc
1553a62e
hex3cca16

3983894 has 4 divisors (see below), whose sum is σ = 5975844. Its totient is φ = 1991946.

The previous prime is 3983893. The next prime is 3983897. The reversal of 3983894 is 4983893.

3983894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×39838942 = 31742822806472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3983893) 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 as a sum of consecutive naturals, namely, 995972 + ... + 995975.

It is an arithmetic number, because the mean of its divisors is an integer number (1493961).

Almost surely, 23983894 is an apocalyptic number.

3983894 is a deficient number, since it is larger than the sum of its proper divisors (1991950).

3983894 is a wasteful number, since it uses less digits than its factorization.

3983894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991949.

The product of its digits is 186624, while the sum is 44.

The square root of 3983894 is about 1995.9694386438. The cubic root of 3983894 is about 158.5267629213.

Subtracting 3983894 from its reverse (4983893), we obtain a palindrome (999999).

The spelling of 3983894 in words is "three million, nine hundred eighty-three thousand, eight hundred ninety-four".

Divisors: 1 2 1991947 3983894