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1440141 = 3480047
BaseRepresentation
bin101011111100110001101
32201011111120
411133212031
5332041031
650511153
715145443
oct5374615
92634446
101440141
118a3aaa
125954b9
133b5671
14296b93
151d6a96
hex15f98d

1440141 has 4 divisors (see below), whose sum is σ = 1920192. Its totient is φ = 960092.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440141 is 1410441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1440141 - 211 = 1438093 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1440141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440641) 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, 240021 + ... + 240026.

It is an arithmetic number, because the mean of its divisors is an integer number (480048).

21440141 is an apocalyptic number.

It is an amenable number.

1440141 is a deficient number, since it is larger than the sum of its proper divisors (480051).

1440141 is an equidigital number, since it uses as much as digits as its factorization.

1440141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480050.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1440141 is about 1200.0587485619. The cubic root of 1440141 is about 112.9280090699.

Adding to 1440141 its reverse (1410441), we get a palindrome (2850582).

The spelling of 1440141 in words is "one million, four hundred forty thousand, one hundred forty-one".

Divisors: 1 3 480047 1440141