21031867 is an odd 8-digits composite number following 21031866
and preceding 21031868 . In scientific notation, it is written as 2.1031867 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20117416 positive integers (up to 21031867) that are relatively prime to 21031867.
21031867 has 4 divisors, whose sum is 21946320
The reverse of 21031867 is 76813012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million thirty-one thousand eight hundred sixty-seven
Scientific notation
2.1031867 × 10^7
Engineering notation
2.1031867 × 10^6
Prime Factorization
23 × 914429
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031867
Product of the distinct prime numbers
The prime factorization of 21031867 is 23 × 914429.
Since it has a total of 2 prime factors.
3 , 9 , 19 , 32 , 226 , 336 , 1354 , 5504 , 28061 , 23780 , 368562 , 182752 , 5602758 , 3869170 , 76940128 , 16892394 , 78507621 , 850701947 , 5586566490 , 1191646215
n×2
42063734
n×3
63095601
n×4
84127468
n×5
105159335
n÷2
10515933.5
n÷3
7010622.3333333
n÷3
5257966.75
n÷5
4206373.4
n2
442339429505689
n3
9.3032240502195E+21
n4
1.9566417089542E+29
n5
4.1151828189377E+36
2 √n
4586.0513516532
3 √n
276.03190049955
4 √n
67.720390959099
5 √n
29.145772143975
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
-21031866
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 21031867 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031867) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101110111011
3
Ternary
1110120112022001
4
Quaternary
1100032232323
5
Quinary
20341004432
6
Senary
2030441431
8
Octal
120165673
10
Decimal
21031867
12
Duodecimal
7063277
16
Hexadecimal
140ebbb
20
Vigesimal
6b8jd7
36
Base36
cisaj
md5
aef00d27b5fb924c06b4b4d86eae2472
sha1
a9cbac2bacfeb4a53e7e3bbe5d91cd6367fbb697
sha256
dafba261e7067311b6b09c0ae2a0727fc3f9634b2335b4bab1719946d0da525a
sha512
cd7f557d6c95d582a36f515ae9d6c602da00ff849f1ffcb60677e0ae85ff8a1e6c2b224d3b2f6af1a666737b692a7953da92bb834b94c91615e3addff7bfb97b
ripemd-160
f39b2f0f4ab4e1e5b34d480f4c944d687dad5b10
Diameter
42063734
Circumference
132147117.71696
Area
1.3896503021282E+15
Volume
3.8969253774493E+22
Surface area
5.5586012085127E+15
Circumference
132147117.71696
Perimeter
84127468
Area
442339429505689
Diagonal
29743551.553427
Surface area
2654036577034134
Volume
9.3032240502195E+21
Space diagonal
36428262.222031
Perimeter
63095601
Area
1.9153859152372E+14
Altitude
18214131.111016
Surface area
1.9153859152372E+14
Volume
1.0963954688013E+21
Height
9914517.1844757