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4082131 = 19214849
BaseRepresentation
bin1111100100100111010011
321200101122001
433210213103
52021112011
6223254431
746461154
oct17444723
97611561
104082131
112338a69
12144a417
13acc081
1478392b
155597c1
hex3e49d3

4082131 has 4 divisors (see below), whose sum is σ = 4297000. Its totient is φ = 3867264.

The previous prime is 4082123. The next prime is 4082147. The reversal of 4082131 is 1312804.

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

It is a cyclic number.

It is not a de Polignac number, because 4082131 - 23 = 4082123 is a prime.

It is a super-2 number, since 2×40821312 = 33327587002322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 214849 = 4082131 / (4 + 0 + 8 + 2 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4082099 and 4082108.

It is not an unprimeable number, because it can be changed into a prime (4082101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107406 + ... + 107443.

It is an arithmetic number, because the mean of its divisors is an integer number (1074250).

Almost surely, 24082131 is an apocalyptic number.

4082131 is a deficient number, since it is larger than the sum of its proper divisors (214869).

4082131 is a wasteful number, since it uses less digits than its factorization.

4082131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214868.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 4082131 is about 2020.4284199149. The cubic root of 4082131 is about 159.8192098577.

Adding to 4082131 its reverse (1312804), we get a palindrome (5394935).

The spelling of 4082131 in words is "four million, eighty-two thousand, one hundred thirty-one".

Divisors: 1 19 214849 4082131