21084087 is an odd 8-digits composite number following 21084086
and preceding 21084088 . In scientific notation, it is written as 2.1084087 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14056056 positive integers (up to 21084087) that are relatively prime to 21084087.
21084087 has 4 divisors, whose sum is 28112120
The reverse of 21084087 is 78048012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eighty-four thousand eighty-seven
Scientific notation
2.1084087 × 10^7
Engineering notation
2.1084087 × 10^6
Prime Factorization
3 × 7028029
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21084087
Product of the distinct prime numbers
The prime factorization of 21084087 is 3 × 7028029.
Since it has a total of 2 prime factors.
8 , 8 , 23 , 57 , 728 , 87 , 6419 , 4779 , 90305 , 92971 , 450137 , 143729 , 1657826 , 5258046 , 66059228 , 63777635 , 420178150 , 726150017 , 5259434139 , 1715206485
n×2
42168174
n×3
63252261
n×4
84336348
n×5
105420435
n÷2
10542043.5
n÷3
7028029
n÷3
5271021.75
n÷5
4216817.4
n2
444538724623569
n3
9.3726931448324E+21
n4
1.9761467768995E+29
n5
4.1665250568919E+36
2 √n
4591.7411730192
3 √n
276.26016478776
4 √n
67.762387598278
5 √n
29.160230992427
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
-21084086
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 21084087 can be divided by 4 positive divisors.
The sum of these divisors (counting 21084087) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011011110110111
3
Ternary
1110200011221010
4
Quaternary
1100123132313
5
Quinary
20344142322
6
Senary
2031523303
8
Octal
120333667
10
Decimal
21084087
12
Duodecimal
7089533
16
Hexadecimal
141b7b7
20
Vigesimal
6bfa47
36
Base36
cjwl3
md5
8c465c004e40dd669cc193f023607fcb
sha1
b6972f10adc1815b49d64a98bb966f67fb5ad277
sha256
578ab8df68d2cbd2d65a090e0550f1e3110a1ce984294cd927e5ef0f3298c87c
sha512
41d40d206da48531551cfff4ee6903473710cfb40acdc7a5493ed14f2efad598fb3ebca07ae52f583acba51566b0dbc2a36a84cb8cc3afcdae9b2715f6e45e77
ripemd-160
a826356c74f2b28bdb9e53f8c9583a9ce20b5662
Diameter
42168174
Circumference
132475225.6537
Area
1.3965595915136E+15
Volume
3.9260245237542E+22
Surface area
5.5862383660543E+15
Circumference
132475225.6537
Perimeter
84336348
Area
444538724623569
Diagonal
29817401.785654
Surface area
2667232347741414
Volume
9.3726931448324E+21
Space diagonal
36518709.915202
Perimeter
63252261
Area
1.9249091424497E+14
Altitude
18259354.957601
Surface area
1.9249091424497E+14
Volume
1.1045824801153E+21
Height
9939133.9285514