1990642 is an even 7-digits composite number following 1990641
and preceding 1990643 . In scientific notation, it is written as 1.990642 × 10^6.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 956592 positive integers (up to 1990642) that are relatively prime to 1990642.
1990642 has 16 divisors, whose sum is 3104640
The reverse of 1990642 is 2460991
Previous prime number is 43
Is Prime? no
Number parity even
Number length 7
Sum of Digits 31
Digital Root 4
Name
one million nine hundred ninety thousand six hundred forty-two
Scientific notation
1.990642 × 10^6
Engineering notation
1.990642 × 10^6
Prime Factorization
2 × 79 × 43 × 293
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1990642
Product of the distinct prime numbers
The prime factorization of 1990642 is 2 × 79 × 43 × 293.
Since it has a total of 4 prime factors.
6 , 4 , 69 , 80 , 833 , 409 , 7785 , 5189 , 28799 , 9879 , 762024 , 968509 , 4932483 , 9357329 , 42144414 , 3971246 , 213916387 , 203840012 , 4932295312 , 2239960100
n×2
3981284
n×3
5971926
n×4
7962568
n×5
9953210
n÷2
995321
n÷3
663547.33333333
n÷3
497660.5
n÷5
398128.4
n2
3962655572164
n3
7888228613483689288
n4
1.5702639183602E+25
n5
3.1258333069725E+31
2 √n
1410.9011304836
3 √n
125.79529202052
4 √n
37.561963879484
5 √n
18.188573214488
1 , 2 , 43 , 79 , 86 , 158 , 293 , 586 , 3397 , 6794 , 12599 , 23147 , 25198 , 46294 , 995321 , 1990642
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1990641
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1990642 can be divided by 16 positive divisors.
The sum of these divisors (counting 1990642) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111100101111111110010
3
Ternary
10202010122111
4
Quaternary
13211333302
5
Quinary
1002200032
6
Senary
110355534
8
Octal
7457762
10
Decimal
1990642
12
Duodecimal
7bbbaa
16
Hexadecimal
1e5ff2
20
Vigesimal
c8gc2
36
Base36
16nzm
md5
65dcc98f9add0db0182f2929fc3c7904
sha1
d39b9cc453da1028b7f41d4a909a5f9803ba0aa1
sha256
7e1d69b377a5aba16b101ecf427692370179bb9de9130e99ec6924db6a195039
sha512
16636053348ba3bfebcadb3a4b20db10edc27c1a54e385e692c5a29b1315480889bda560c7f2caa681841605903c4d3a2734e1348483f4b9fdb0e0fd7379e1ee
ripemd-160
150db4495cb19555b3dda95fa452baf579c04c1a
Diameter
3981284
Circumference
12507572.566255
Area
12449049634217
Volume
3.3042134749276E+19
Surface area
49796198536868
Circumference
12507572.566255
Perimeter
7962568
Area
3962655572164
Diagonal
2815192.9142295
Surface area
23775933432984
Volume
7888228613483689288
Space diagonal
3447893.0836805
Perimeter
5971926
Area
1715880195971
Altitude
1723946.5418403
Surface area
1715880195971
Volume
9.2963665735735E+17
Height
938397.6380765