Search a number
-
+
671441 = 1935339
BaseRepresentation
bin10100011111011010001
31021010001012
42203323101
5132441231
622220305
75464361
oct2437321
91233035
10671441
11419511
12284695
131a6804
141369a1
15d3e2b
hexa3ed1

671441 has 4 divisors (see below), whose sum is σ = 706800. Its totient is φ = 636084.

The previous prime is 671431. The next prime is 671443. The reversal of 671441 is 144176.

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 a de Polignac number, because none of the positive numbers 2k-671441 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (671443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17651 + ... + 17688.

It is an arithmetic number, because the mean of its divisors is an integer number (176700).

2671441 is an apocalyptic number.

It is an amenable number.

671441 is a deficient number, since it is larger than the sum of its proper divisors (35359).

671441 is a wasteful number, since it uses less digits than its factorization.

671441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35358.

The product of its digits is 672, while the sum is 23.

The square root of 671441 is about 819.4150352538. The cubic root of 671441 is about 87.5660888460.

The spelling of 671441 in words is "six hundred seventy-one thousand, four hundred forty-one".

Divisors: 1 19 35339 671441