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3821081 = 11563617
BaseRepresentation
bin1110100100111000011001
321012010112112
432210320121
51434233311
6213522105
744323115
oct16447031
97163475
103821081
11217a920
121343335
13a3a2c4
14716745
1550728b
hex3a4e19

3821081 has 8 divisors (see below), whose sum is σ = 4182624. Its totient is φ = 3461920.

The previous prime is 3821057. The next prime is 3821099. The reversal of 3821081 is 1801283.

3821081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3821081 - 210 = 3820057 is a prime.

It is a super-2 number, since 2×38210812 = 29201320017122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3821581) 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 in 7 ways as a sum of consecutive naturals, for example, 5885 + ... + 6501.

It is an arithmetic number, because the mean of its divisors is an integer number (522828).

Almost surely, 23821081 is an apocalyptic number.

It is an amenable number.

3821081 is a deficient number, since it is larger than the sum of its proper divisors (361543).

3821081 is a wasteful number, since it uses less digits than its factorization.

3821081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 3821081 is about 1954.7585528653. The cubic root of 3821081 is about 156.3371106794.

The spelling of 3821081 in words is "three million, eight hundred twenty-one thousand, eighty-one".

Divisors: 1 11 563 617 6193 6787 347371 3821081