1666981 is an odd 7-digits composite number following 1666980
and preceding 1666982 . In scientific notation, it is written as 1.666981 × 10^6.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 1628172 positive integers (up to 1666981) that are relatively prime to 1666981.
1666981 has 4 divisors, whose sum is 1705792
The reverse of 1666981 is 1896661
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 37
Digital Root 1
Name
one million six hundred sixty-six thousand nine hundred eighty-one
Scientific notation
1.666981 × 10^6
Engineering notation
1.666981 × 10^6
Prime Factorization
43 × 38767
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1666981
Product of the distinct prime numbers
The prime factorization of 1666981 is 43 × 38767.
Since it has a total of 2 prime factors.
6 , 2 , 94 , 48 , 412 , 929 , 9972 , 3337 , 278 , 54332 , 57903 , 947967 , 3287175 , 9176830 , 54335661 , 88621248 , 497748466 , 411323952 , 8202789554 , 5162785852
n×2
3333962
n×3
5000943
n×4
6667924
n×5
8334905
n÷2
833490.5
n÷3
555660.33333333
n÷3
416745.25
n÷5
333396.2
n2
2778825654361
n3
4632249568132354141
n4
7.7218720173348E+24
n5
1.2872213937329E+31
2 √n
1291.1161837728
3 √n
118.57056334866
4 √n
35.932105195393
5 √n
17.554405653395
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
-1666980
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 1666981 can be divided by 4 positive divisors.
The sum of these divisors (counting 1666981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110010110111110100101
3
Ternary
10010200200001
4
Quaternary
12112332211
5
Quinary
411320411
6
Senary
55421301
8
Octal
6267645
10
Decimal
1666981
12
Duodecimal
684831
16
Hexadecimal
196fa5
20
Vigesimal
a8791
36
Base36
zq91
md5
4c98d51b230dd9c29ce5940e764456b9
sha1
9e661859b7dfa16473be8b04305faab8d4bd2879
sha256
93dac32c3e9f5dd02b91315e0813ed591eb728a126f93a526516fab36a1d636b
sha512
773515b899996b04ea4338c3e4a149590f0ac35f4e961eb3d2b0d8078890c9fc4b8dd98ad66ca68a07a9dc7bfe26ee42e6f8355312e48e626d16bcb14ce950cc
ripemd-160
7847994002d353fc87c3d52103087e5a6f315f0b
Diameter
3333962
Circumference
10473950.526548
Area
8729938261347.4
Volume
1.9403521617119E+19
Surface area
34919753045389
Circumference
10473950.526548
Perimeter
6667924
Area
2778825654361
Diagonal
2357467.1384183
Surface area
16672953926166
Volume
4632249568132354141
Space diagonal
2887295.787252
Perimeter
5000943
Area
1203266804682.3
Altitude
1443647.893626
Surface area
1203266804682.3
Volume
5.4591584696247E+17
Height
785822.37947275