1981898 is an even 7-digits composite number following 1981897
and preceding 1981899 . In scientific notation, it is written as 1.981898 × 10^6.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 986464 positive integers (up to 1981898) that are relatively prime to 1981898.
1981898 has 8 divisors, whose sum is 2986308
The reverse of 1981898 is 8981891
Previous prime number is 233
Is Prime? no
Number parity even
Number length 7
Sum of Digits 44
Digital Root 8
Name
one million nine hundred eighty-one thousand eight hundred ninety-eight
Scientific notation
1.981898 × 10^6
Engineering notation
1.981898 × 10^6
Prime Factorization
2 × 233 × 4253
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1981898
Product of the distinct prime numbers
The prime factorization of 1981898 is 2 × 233 × 4253.
Since it has a total of 3 prime factors.
8 , 4 , 49 , 47 , 906 , 158 , 9034 , 4527 , 35472 , 45103 , 864240 , 440400 , 5797669 , 929282 , 52663777 , 5362064 , 113624986 , 416045752 , 5353494107 , 7486967944
n×2
3963796
n×3
5945694
n×4
7927592
n×5
9909490
n÷2
990949
n÷3
660632.66666667
n÷3
495474.5
n÷5
396379.6
n2
3927919682404
n3
7784736162717122792
n4
1.5428553031417E+25
n5
3.0577818395859E+31
2 √n
1407.7989913336
3 √n
125.61083419058
4 √n
37.520647533507
5 √n
18.17256621161
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981897
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981898 can be divided by 8 positive divisors.
The sum of these divisors (counting 1981898) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100011110111001010
3
Ternary
10201200122122
4
Quaternary
13203313022
5
Quinary
1001410043
6
Senary
110251242
8
Octal
7436712
10
Decimal
1981898
12
Duodecimal
7b6b22
16
Hexadecimal
1e3dca
20
Vigesimal
c7eei
36
Base36
16h8q
md5
3e9aba5f0812fecb7a506bf4cbef8886
sha1
60b1919713ae8380937ef4c2317b33705abbfebb
sha256
1c3d330a7cc1fcf6c8d4c3b21b92c7edcadfc84106a17126a2f57870c1208a4f
sha512
272f60593ecf2c2fa8d0f0d1ff998d90a41dc86a104de111d99c3514330920eb0d4bf772a0811ecbbf03c07adeba1ec32cc6ebd92c6d24a0db3099f848ea5874
ripemd-160
9dc176d5c648bc21252b00ffa86046c10dbcb022
Diameter
3963796
Circumference
12452632.393929
Area
12339923618131
Volume
3.2608626585236E+19
Surface area
49359694472525
Circumference
12452632.393929
Perimeter
7927592
Area
3927919682404
Diagonal
2802827.0308401
Surface area
23567518094424
Volume
7784736162717122792
Space diagonal
3432748.0314191
Perimeter
5945694
Area
1700839114493.4
Altitude
1716374.0157096
Surface area
1700839114493.4
Volume
9.1743995506757E+17
Height
934275.6769467