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3089689 = 29106541
BaseRepresentation
bin1011110010010100011001
312210222020221
423302110121
51242332224
6150120041
735155561
oct13622431
95728227
103089689
111820369
121050021
13842425
145a5da1
154106e4
hex2f2519

3089689 has 4 divisors (see below), whose sum is σ = 3196260. Its totient is φ = 2983120.

The previous prime is 3089687. The next prime is 3089693. The reversal of 3089689 is 9869803.

3089689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9869803 = 19949597.

It can be written as a sum of positive squares in 2 ways, for example, as 739600 + 2350089 = 860^2 + 1533^2 .

It is a cyclic number.

It is not a de Polignac number, because 3089689 - 21 = 3089687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3089687) 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, 53242 + ... + 53299.

It is an arithmetic number, because the mean of its divisors is an integer number (799065).

Almost surely, 23089689 is an apocalyptic number.

It is an amenable number.

3089689 is a deficient number, since it is larger than the sum of its proper divisors (106571).

3089689 is a wasteful number, since it uses less digits than its factorization.

3089689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106570.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 3089689 is about 1757.7511200395. The cubic root of 3089689 is about 145.6481330869.

The spelling of 3089689 in words is "three million, eighty-nine thousand, six hundred eighty-nine".

Divisors: 1 29 106541 3089689