21084871 is an odd 8-digits composite number following 21084870
and preceding 21084872 . In scientific notation, it is written as 2.1084871 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20968200 positive integers (up to 21084871) that are relatively prime to 21084871.
21084871 has 4 divisors, whose sum is 21201544
The reverse of 21084871 is 17848012
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eighty-four thousand eight hundred seventy-one
Scientific notation
2.1084871 × 10^7
Engineering notation
2.1084871 × 10^6
Prime Factorization
181 × 116491
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21084871
Product of the distinct prime numbers
The prime factorization of 21084871 is 181 × 116491.
Since it has a total of 2 prime factors.
3 , 4 , 43 , 36 , 493 , 744 , 9958 , 6427 , 54386 , 12062 , 946957 , 983187 , 1855064 , 7652353 , 55879889 , 38305331 , 122313514 , 816663779 , 5423371082 , 7565956348
n×2
42169742
n×3
63254613
n×4
84339484
n×5
105424355
n÷2
10542435.5
n÷3
7028290.3333333
n÷3
5271217.75
n÷5
4216974.2
n2
444571785086641
n3
9.3737387387915E+21
n4
1.9764407209512E+29
n5
4.1672997640404E+36
2 √n
4591.8265428912
3 √n
276.26358893863
4 √n
67.763017516129
5 √n
29.160447850583
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
-21084870
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 21084871 can be divided by 4 positive divisors.
The sum of these divisors (counting 21084871) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011011101011000111
3
Ternary
1110200020000011
4
Quaternary
1100123223013
5
Quinary
20344203441
6
Senary
2031531051
8
Octal
120335307
10
Decimal
21084871
12
Duodecimal
7089a87
16
Hexadecimal
141bac7
20
Vigesimal
6bfc3b
36
Base36
cjx6v
md5
593e589b0b68a893c963ce6e3ebaef29
sha1
3a41a5cedbb60c96f5c2534e0d792a0a53910c72
sha256
43d02937daed8682493f8efbc49daff829f3c083228d791cb6cd4ced74b8367a
sha512
17f219a82202bfdbe493bb023d81a1cae06d84fcd2657382d4cfe559efe21b7fed9a39e63616fbfb070add1d5d2675c4f0c743ee0b4a4220a6eb1083e288d1f6
ripemd-160
d4e06e36d0e0dfdbc5379627d76c533285be16a1
Diameter
42169742
Circumference
132480151.67098
Area
1.3966634540215E+15
Volume
3.9264625011277E+22
Surface area
5.586653816086E+15
Circumference
132480151.67098
Perimeter
84339484
Area
444571785086641
Diagonal
29818510.529087
Surface area
2667430710519846
Volume
9.3737387387915E+21
Space diagonal
36520067.843036
Perimeter
63254613
Area
1.9250522984541E+14
Altitude
18260033.921518
Surface area
1.9250522984541E+14
Volume
1.1047057045451E+21
Height
9939503.5096957