21031998 is an even 8-digits composite number following 21031997
and preceding 21031999 . In scientific notation, it is written as 2.1031998 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6471360 positive integers (up to 21031998) that are relatively prime to 21031998.
21031998 has 16 divisors, whose sum is 45299856
The reverse of 21031998 is 89913012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million thirty-one thousand nine hundred ninety-eight
Scientific notation
2.1031998 × 10^7
Engineering notation
2.1031998 × 10^6
Prime Factorization
2 × 3 × 13 × 269641
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031998
Product of the distinct prime numbers
The prime factorization of 21031998 is 2 × 3 × 13 × 269641.
Since it has a total of 4 prime factors.
4 , 8 , 85 , 87 , 258 , 522 , 928 , 6140 , 12207 , 10447 , 258659 , 134442 , 77237 , 9231929 , 52483361 , 35266530 , 177930811 , 807507024 , 7021535281 , 9087925372
n×2
42063996
n×3
63095994
n×4
84127992
n×5
105159990
n÷2
10515999
n÷3
7010666
n÷3
5257999.5
n÷5
4206399.6
n2
442344939872004
n3
9.3033978906981E+21
n4
1.9566904583037E+29
n5
4.1153109805662E+36
2 √n
4586.0656340702
3 √n
276.03247359978
4 √n
67.720496410394
5 √n
29.145808451608
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 269641 , 539282 , 808923 , 1617846 , 3505333 , 7010666 , 10515999 , 21031998
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
-21031997
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 21031998 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031998) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110110000111110
3
Ternary
1110120112110220
4
Quaternary
1100032300332
5
Quinary
20341010443
6
Senary
2030442210
8
Octal
120166076
10
Decimal
21031998
12
Duodecimal
7063366
16
Hexadecimal
140ec3e
20
Vigesimal
6b8jji
36
Base36
cise6
md5
b3cfe5efa8600acc6cc1fe7f93a2ef03
sha1
8bf20c136b4c37cf393fa14d95eabdea3722b246
sha256
9c6a1fc2e06f0fff60859fbdd9885e875a2f6cc000baeb78433db10835c12c85
sha512
a64d3931e1915f395eabac57c9cf0fd6730b5dc8dc3120e82d5f5c614d624633b646b923d9b9de8b5e2d8165eb76339ad9505e1d609673f12d1652d82bdf2199
ripemd-160
ce48fcf22d853401453fdf421665198f8a981bcc
Diameter
42063996
Circumference
132147940.81423
Area
1.3896676134545E+15
Volume
3.8969981955787E+22
Surface area
5.558670453818E+15
Circumference
132147940.81423
Perimeter
84127992
Area
442344939872004
Diagonal
29743736.815404
Surface area
2654069639232024
Volume
9.3033978906981E+21
Space diagonal
36428489.120687
Perimeter
63095994
Area
1.9154097758233E+14
Altitude
18214244.560344
Surface area
1.9154097758233E+14
Volume
1.0964159560982E+21
Height
9914578.9384679