Search a number
-
+
1395241 = 1782073
BaseRepresentation
bin101010100101000101001
32121212220121
411110220221
5324121431
645523241
714600521
oct5245051
92555817
101395241
118732a1
12573521
1339b0b3
14284681
151c8611
hex154a29

1395241 has 4 divisors (see below), whose sum is σ = 1477332. Its totient is φ = 1313152.

The previous prime is 1395223. The next prime is 1395263. The reversal of 1395241 is 1425931.

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 403225 + 992016 = 635^2 + 996^2 .

It is a cyclic number.

It is not a de Polignac number, because 1395241 - 25 = 1395209 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390241) 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, 41020 + ... + 41053.

It is an arithmetic number, because the mean of its divisors is an integer number (369333).

21395241 is an apocalyptic number.

It is an amenable number.

1395241 is a deficient number, since it is larger than the sum of its proper divisors (82091).

1395241 is an equidigital number, since it uses as much as digits as its factorization.

1395241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82090.

The product of its digits is 1080, while the sum is 25.

The square root of 1395241 is about 1181.2032001311. The cubic root of 1395241 is about 111.7419921960.

The spelling of 1395241 in words is "one million, three hundred ninety-five thousand, two hundred forty-one".

Divisors: 1 17 82073 1395241