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1402441 = 6172273
BaseRepresentation
bin101010110011001001001
32122020210021
411112121021
5324334231
650020441
714630515
oct5263111
92566707
101402441
11878747
12577721
133a1461
14287145
151ca811
hex156649

1402441 has 4 divisors (see below), whose sum is σ = 1405332. Its totient is φ = 1399552.

The previous prime is 1402439. The next prime is 1402459. The reversal of 1402441 is 1442041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1442041 = 6721523.

It can be written as a sum of positive squares in 2 ways, for example, as 585225 + 817216 = 765^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402441 - 21 = 1402439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402421) 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, 520 + ... + 1753.

It is an arithmetic number, because the mean of its divisors is an integer number (351333).

21402441 is an apocalyptic number.

It is an amenable number.

1402441 is a deficient number, since it is larger than the sum of its proper divisors (2891).

1402441 is an equidigital number, since it uses as much as digits as its factorization.

1402441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1402441 is about 1184.2470181512. The cubic root of 1402441 is about 111.9338735933.

Adding to 1402441 its reverse (1442041), we get a palindrome (2844482).

The spelling of 1402441 in words is "one million, four hundred two thousand, four hundred forty-one".

Divisors: 1 617 2273 1402441