Search a number
-
+
3069989 = 13236153
BaseRepresentation
bin1011101101100000100101
312202222020022
423231200211
51241214424
6145444525
735044256
oct13554045
95688208
103069989
11180758a
121040745
13836480
1459cb2d
1540995e
hex2ed825

3069989 has 4 divisors (see below), whose sum is σ = 3306156. Its totient is φ = 2833824.

The previous prime is 3069967. The next prime is 3070003. The reversal of 3069989 is 9899603.

3069989 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.

It can be written as a sum of positive squares in 2 ways, for example, as 667489 + 2402500 = 817^2 + 1550^2 .

It is a cyclic number.

It is not a de Polignac number, because 3069989 - 212 = 3065893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3069929) 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, 118064 + ... + 118089.

It is an arithmetic number, because the mean of its divisors is an integer number (826539).

Almost surely, 23069989 is an apocalyptic number.

It is an amenable number.

3069989 is a deficient number, since it is larger than the sum of its proper divisors (236167).

3069989 is a wasteful number, since it uses less digits than its factorization.

3069989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236166.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 3069989 is about 1752.1384077749. The cubic root of 3069989 is about 145.3379197601.

The spelling of 3069989 in words is "three million, sixty-nine thousand, nine hundred eighty-nine".

Divisors: 1 13 236153 3069989