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3923305 = 5784661
BaseRepresentation
bin1110111101110101101001
321101022202121
432331311221
52001021210
6220031241
745230131
oct16756551
97338677
103923305
11223a701
121392521
13a749a9
14741ac1
155276da
hex3bdd69

3923305 has 4 divisors (see below), whose sum is σ = 4707972. Its totient is φ = 3138640.

The previous prime is 3923303. The next prime is 3923321. The reversal of 3923305 is 5033293.

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

It can be written as a sum of positive squares in 2 ways, for example, as 769129 + 3154176 = 877^2 + 1776^2 .

It is not a de Polignac number, because 3923305 - 21 = 3923303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3923305.

It is not an unprimeable number, because it can be changed into a prime (3923303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392326 + ... + 392335.

It is an arithmetic number, because the mean of its divisors is an integer number (1176993).

Almost surely, 23923305 is an apocalyptic number.

It is an amenable number.

3923305 is a deficient number, since it is larger than the sum of its proper divisors (784667).

3923305 is an equidigital number, since it uses as much as digits as its factorization.

3923305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784666.

The product of its (nonzero) digits is 2430, while the sum is 25.

The square root of 3923305 is about 1980.7334500129. The cubic root of 3923305 is about 157.7190033055.

Adding to 3923305 its reverse (5033293), we get a palindrome (8956598).

The spelling of 3923305 in words is "three million, nine hundred twenty-three thousand, three hundred five".

Divisors: 1 5 784661 3923305