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989141 = 1675923
BaseRepresentation
bin11110001011111010101
31212020211212
43301133111
5223123031
633111205
711256536
oct3613725
91766755
10989141
1161617a
123b8505
132882ba
141ba68d
1514812b
hexf17d5

989141 has 4 divisors (see below), whose sum is σ = 995232. Its totient is φ = 983052.

The previous prime is 989123. The next prime is 989171. The reversal of 989141 is 141989.

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, and also an emirpimes, since its reverse is a distinct semiprime: 141989 = 1071327.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-989141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989098 and 989107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989171) 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, 2795 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (248808).

2989141 is an apocalyptic number.

It is an amenable number.

989141 is a deficient number, since it is larger than the sum of its proper divisors (6091).

989141 is a wasteful number, since it uses less digits than its factorization.

989141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090.

The product of its digits is 2592, while the sum is 32.

The square root of 989141 is about 994.5556796882. Note that the first 3 decimals coincide. The cubic root of 989141 is about 99.6367151728.

The spelling of 989141 in words is "nine hundred eighty-nine thousand, one hundred forty-one".

Divisors: 1 167 5923 989141