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3205830 = 235106861
BaseRepresentation
bin1100001110101011000110
320000212120110
430032223012
51310041310
6152413450
736151305
oct14165306
96025513
103205830
11189a651
1210a7286
13883254
145d643c
15434d20
hex30eac6

3205830 has 16 divisors (see below), whose sum is σ = 7694064. Its totient is φ = 854880.

The previous prime is 3205793. The next prime is 3205837. The reversal of 3205830 is 385023.

3205830 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3205797 and 3205806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205837) 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, 53401 + ... + 53460.

It is an arithmetic number, because the mean of its divisors is an integer number (480879).

Almost surely, 23205830 is an apocalyptic number.

3205830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3205830 is an abundant number, since it is smaller than the sum of its proper divisors (4488234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3205830 is a wasteful number, since it uses less digits than its factorization.

3205830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106871.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3205830 is about 1790.4831750117. The cubic root of 3205830 is about 147.4506969184.

The spelling of 3205830 in words is "three million, two hundred five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 106861 213722 320583 534305 641166 1068610 1602915 3205830