1990689 is an odd 7-digits composite number following 1990688
and preceding 1990690 . In scientific notation, it is written as 1.990689 × 10^6.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 1327124 positive integers (up to 1990689) that are relatively prime to 1990689.
1990689 has 4 divisors, whose sum is 2654256
The reverse of 1990689 is 9860991
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 42
Digital Root 6
Name
one million nine hundred ninety thousand six hundred eighty-nine
Scientific notation
1.990689 × 10^6
Engineering notation
1.990689 × 10^6
Prime Factorization
3 × 663563
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1990689
Product of the distinct prime numbers
The prime factorization of 1990689 is 3 × 663563.
Since it has a total of 2 prime factors.
10 , 3 , 11 , 5 , 25 , 622 , 7335 , 4660 , 1380 , 13491 , 99521 , 790189 , 4418115 , 5194766 , 49304397 , 28873263 , 67800882 , 907615265 , 529512769 , 1818460753
n×2
3981378
n×3
5972067
n×4
7962756
n×5
9953445
n÷2
995344.5
n÷3
663563
n÷3
497672.25
n÷5
398137.8
n2
3962842694721
n3
7888787361111452769
n4
1.5704122223104E+25
n5
3.1262023364188E+31
2 √n
1410.9177864071
3 √n
125.79628204153
4 √n
37.562185591458
5 √n
18.188659101842
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
-1990688
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 1990689 can be divided by 4 positive divisors.
The sum of these divisors (counting 1990689) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110000000100001
3
Ternary
10202010201020
4
Quaternary
13212000201
5
Quinary
1002200224
6
Senary
110400053
8
Octal
7460041
10
Decimal
1990689
12
Duodecimal
800029
16
Hexadecimal
1e6021
20
Vigesimal
c8ge9
36
Base36
16o0x
md5
a849fdf4444480f27c7751016159b351
sha1
d220a8f89ecaf0e7ec7c0fad972805c5438c07ee
sha256
3cc939858e9a7b5956cc5af6c95b7f02e49240f21c3da490dc947f504b53612e
sha512
c52084be165f5bdcbb0f94ea31ce55ec9f5bb209d10181d62e7cccde02537fcbdcdd6594810a163eedf1a2cd8869b0f2dade56e3d5ac0a7fbc252e9289faf55f
ripemd-160
d844319552bfe401c3fef0d2eba876f93f7e6567
Diameter
3981378
Circumference
12507867.875964
Area
12449637497067
Volume
3.3044475225866E+19
Surface area
49798549988270
Circumference
12507867.875964
Perimeter
7962756
Area
3962842694721
Diagonal
2815259.3822669
Surface area
23777056168326
Volume
7888787361111452769
Space diagonal
3447974.4900685
Perimeter
5972067
Area
1715961222415
Altitude
1723987.2450342
Surface area
1715961222415
Volume
9.2970250639677E+17
Height
938419.79408898