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3820881 = 31967033
BaseRepresentation
bin1110100100110101010001
321012010021010
432210311101
51434232011
6213521133
744322411
oct16446521
97163233
103820881
11217a759
1213431a9
13a3a19c
14716641
155071a6
hex3a4d51

3820881 has 8 divisors (see below), whose sum is σ = 5362720. Its totient is φ = 2413152.

The previous prime is 3820871. The next prime is 3820889. The reversal of 3820881 is 1880283.

3820881 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 3820881 - 25 = 3820849 is a prime.

It is a super-2 number, since 2×38208812 = 29198263232322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3820889) 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, 33460 + ... + 33573.

It is an arithmetic number, because the mean of its divisors is an integer number (670340).

Almost surely, 23820881 is an apocalyptic number.

It is an amenable number.

3820881 is a deficient number, since it is larger than the sum of its proper divisors (1541839).

3820881 is a wasteful number, since it uses less digits than its factorization.

3820881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67055.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 3820881 is about 1954.7073949827. The cubic root of 3820881 is about 156.3343830073.

The spelling of 3820881 in words is "three million, eight hundred twenty thousand, eight hundred eighty-one".

Divisors: 1 3 19 57 67033 201099 1273627 3820881