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3825361 = 29131909
BaseRepresentation
bin1110100101111011010001
321012100102001
432211323101
51434402421
6213554001
744341441
oct16457321
97170361
103825361
112183061
121345901
13a3c237
14718121
15508691
hex3a5ed1

3825361 has 4 divisors (see below), whose sum is σ = 3957300. Its totient is φ = 3693424.

The previous prime is 3825359. The next prime is 3825373. The reversal of 3825361 is 1635283.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1635283 = 13125791.

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 1404225 = 1556^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 3825361 - 21 = 3825359 is a prime.

It is a Duffinian number.

3825361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3825301) 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, 65926 + ... + 65983.

It is an arithmetic number, because the mean of its divisors is an integer number (989325).

Almost surely, 23825361 is an apocalyptic number.

It is an amenable number.

3825361 is a deficient number, since it is larger than the sum of its proper divisors (131939).

3825361 is a wasteful number, since it uses less digits than its factorization.

3825361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131938.

The product of its digits is 4320, while the sum is 28.

The square root of 3825361 is about 1955.8530108370. The cubic root of 3825361 is about 156.3954600627.

It can be divided in two parts, 3825 and 361, that added together give a triangular number (4186 = T91).

The spelling of 3825361 in words is "three million, eight hundred twenty-five thousand, three hundred sixty-one".

Divisors: 1 29 131909 3825361