206989 is an odd 6-digits composite number following 206988
and preceding 206990 . In scientific notation, it is written as 2.06989 × 10^5.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 206080 positive integers (up to 206989) that are relatively prime to 206989.
206989 has 4 divisors, whose sum is 207900
The reverse of 206989 is 989602
Previous prime number is 461
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 34
Digital Root 7
Name
two hundred six thousand nine hundred eighty-nine
Scientific notation
2.06989 × 10^5
Engineering notation
2.06989 × 10^3
Prime Factorization
461 × 449
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
206989
Product of the distinct prime numbers
The prime factorization of 206989 is 461 × 449.
Since it has a total of 2 prime factors.
7 , 9 , 6 , 20 , 428 , 343 , 9617 , 903 , 25693 , 57332 , 492073 , 250946 , 5740657 , 4787473 , 66978199 , 7681613 , 254513334 , 63887552 , 6210962476 , 8572929360
n×2
413978
n×3
620967
n×4
827956
n×5
1034945
n÷2
103494.5
n÷3
68996.333333333
n÷3
51747.25
n÷5
41397.8
n2
42844446121
n3
8868329058139669
n4
1.8356465634153E+21
n5
3.7995864651476E+26
2 √n
454.96043784048
3 √n
59.153769147549
4 √n
21.32980163622
5 √n
11.566166857082
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-206988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 206989 can be divided by 4 positive divisors.
The sum of these divisors (counting 206989) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010100010001101
3
Ternary
101111221021
4
Quaternary
302202031
5
Quinary
23110424
6
Senary
4234141
8
Octal
624215
10
Decimal
206989
12
Duodecimal
9b951
16
Hexadecimal
3288d
20
Vigesimal
15h99
36
Base36
4fpp
md5
411cc7cc3b5114a45b6db5a7cac40bb3
sha1
2d7743bf390dfca07afb040838f21a8bda41dad8
sha256
75c53afaa4d59efa5e2e25863ea4b8cb5360d4429eba81cb26685c48b8682edd
sha512
eaa22de0a82e5a41100fd8183c8b1fd4bd8e0442486a56cccc0fd30af51aa032271b28441a3a00d4a1ef2a311bc6551258aaaee1a7cd0fb643c2a0b911d61231
ripemd-160
589d22273a043fd16c69484eb07f9f26697979d4
Diameter
413978
Circumference
1300550.2435478
Area
134599797180.86
Volume
3.7147569891558E+16
Surface area
538399188723.43
Circumference
1300550.2435478
Perimeter
827956
Area
42844446121
Diagonal
292726.65106204
Surface area
257066676726
Volume
8868329058139669
Space diagonal
358515.46460787
Perimeter
620967
Area
18552189375.93
Altitude
179257.73230394
Surface area
18552189375.93
Volume
1.0451426024674E+15
Height
97575.550354015