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4381111 = 76131021
BaseRepresentation
bin10000101101100110110111
322020120202101
4100231212313
52110143421
6233522531
752144630
oct20554667
98216671
104381111
112522659
121573447
13ba5197
14820887
155b8191
hex42d9b7

4381111 has 8 divisors (see below), whose sum is σ = 5020064. Its totient is φ = 3745440.

The previous prime is 4381093. The next prime is 4381127. The reversal of 4381111 is 1111834.

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

It is a cyclic number.

It is not a de Polignac number, because 4381111 - 27 = 4380983 is a prime.

4381111 is a modest number, since divided by 1111 gives 438 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4381151) 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 7 ways as a sum of consecutive naturals, for example, 3781 + ... + 4801.

It is an arithmetic number, because the mean of its divisors is an integer number (627508).

Almost surely, 24381111 is an apocalyptic number.

4381111 is a deficient number, since it is larger than the sum of its proper divisors (638953).

4381111 is a wasteful number, since it uses less digits than its factorization.

4381111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641.

The product of its digits is 96, while the sum is 19.

The square root of 4381111 is about 2093.1103649832. The cubic root of 4381111 is about 163.6294305050.

Adding to 4381111 its reverse (1111834), we get a palindrome (5492945).

The spelling of 4381111 in words is "four million, three hundred eighty-one thousand, one hundred eleven".

Divisors: 1 7 613 1021 4291 7147 625873 4381111