21138031 is an odd 8-digits composite number following 21138030
and preceding 21138032 . In scientific notation, it is written as 2.1138031 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20822472 positive integers (up to 21138031) that are relatively prime to 21138031.
21138031 has 4 divisors, whose sum is 21453592
The reverse of 21138031 is 13083112
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million one hundred thirty-eight thousand thirty-one
Scientific notation
2.1138031 × 10^7
Engineering notation
2.1138031 × 10^6
Prime Factorization
67 × 315493
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21138031
Product of the distinct prime numbers
The prime factorization of 21138031 is 67 × 315493.
Since it has a total of 2 prime factors.
6 , 2 , 12 , 99 , 185 , 660 , 7677 , 8045 , 91828 , 93651 , 369824 , 86811 , 1797639 , 2609124 , 82318950 , 91957567 , 234429202 , 70803423 , 224017466 , 9614569742
n×2
42276062
n×3
63414093
n×4
84552124
n×5
105690155
n÷2
10569015.5
n÷3
7046010.3333333
n÷3
5284507.75
n÷5
4227606.2
n2
446816354556961
n3
9.444817953932E+21
n4
1.9964485469957E+29
n5
4.22009912763E+36
2 √n
4597.6114450875
3 √n
276.49556960376
4 √n
67.805688884396
5 √n
29.175137135895
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
-21138030
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 21138031 can be divided by 4 positive divisors.
The sum of these divisors (counting 21138031) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101000101001101111
3
Ternary
1110202220221001
4
Quaternary
1100220221233
5
Quinary
20402404111
6
Senary
2033021131
8
Octal
120505157
10
Decimal
21138031
12
Duodecimal
70b47a7
16
Hexadecimal
1428a6f
20
Vigesimal
6c251b
36
Base36
cl27j
md5
c2086e62483aa8fc6770105e097f0027
sha1
bc6bc2bfe233102c39af879c4f7f34c01528b45c
sha256
b86febbc4fe4522b9d48180e597dde1e69412cd12ef28b50e395c9926dcbaf3b
sha512
fd9c295592b2b0f2bda8d6ba1c212cf94fac13fefe9ef1e8e794515a1b8eb524f50f8602e68337f9d71b43249af549cca8d12fed651f7f39307545926b3b0bda
ripemd-160
c0e0af903184b8bc9f0e2ff60efbff8b294e6661
Diameter
42276062
Circumference
132814165.80191
Area
1.4037149769799E+15
Volume
3.9562360931421E+22
Surface area
5.6148599079197E+15
Circumference
132814165.80191
Perimeter
84552124
Area
446816354556961
Diagonal
29893690.122063
Surface area
2680898127341766
Volume
9.444817953932E+21
Space diagonal
36612143.663966
Perimeter
63414093
Area
1.9347715693634E+14
Altitude
18306071.831983
Surface area
1.9347715693634E+14
Volume
1.113082470383E+21
Height
9964563.374021