21084870 is an even 8-digits composite number following 21084869
and preceding 21084871 . In scientific notation, it is written as 2.1084870 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 5241600 positive integers (up to 21084870) that are relatively prime to 21084870.
21084870 has 32 divisors, whose sum is 36080640
The reverse of 21084870 is 07848012
Previous prime number is 521
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eighty-four thousand eight hundred seventy
Scientific notation
2.1084870 × 10^7
Engineering notation
2.1084870 × 10^6
Prime Factorization
2 × 15 × 19 × 521 × 71
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21084870
Product of the distinct prime numbers
The prime factorization of 21084870 is 2 × 15 × 19 × 521 × 71.
Since it has a total of 5 prime factors.
3 , 9 , 59 , 10 , 489 , 165 , 7771 , 426 , 37766 , 76314 , 408264 , 631733 , 8175222 , 4180777 , 46628819 , 60625376 , 192403294 , 438128402 , 5822487748 , 6232045061
n×2
42169740
n×3
63254610
n×4
84339480
n×5
105424350
n÷2
10542435
n÷3
7028290
n÷3
5271217.5
n÷5
4216974
n2
444571742916900
n3
9.3737374050763E+21
n4
1.9764403460017E+29
n5
4.1672987758201E+36
2 √n
4591.8264340021
3 √n
276.26358457115
4 √n
67.763016712673
5 √n
29.160447573982
1 , 2 , 15 , 19 , 30 , 38 , 71 , 142 , 285 , 521 , 570 , 1042 , 1065 , 1349 , 2130 , 2698 , 7815 , 9899 , 15630 , 19798 , 20235 , 36991 , 40470 , 73982 , 148485 , 296970 , 554865 , 702829 , 1109730 , 1405658 , 10542435 , 21084870
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21084869
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21084870 can be divided by 32 positive divisors.
The sum of these divisors (counting 21084870) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011011101011000110
3
Ternary
1110200020000010
4
Quaternary
1100123223012
5
Quinary
20344203440
6
Senary
2031531050
8
Octal
120335306
10
Decimal
21084870
12
Duodecimal
7089a86
16
Hexadecimal
141bac6
20
Vigesimal
6bfc3a
36
Base36
cjx6u
md5
ad629451cb43210c7b90c213c934d86f
sha1
b7354059f1cfadc6b9ef2c8ecbef57aa5da6e731
sha256
b7d45e3f8e85f4b7939e6599d366b4765f4746e16856cec7a8b77d7f65c0b936
sha512
1162e670d23cf49c2e274a6f57ea2b15ce1a86a59f78cf10a75613390796762a0670fc3f599d11aa3f7f2bef7cf5ea93b2449cf2d4c7fa44ae4851bbcf163086
ripemd-160
7dbce9b37317628698e54d3e9ba0409443b1294c
Diameter
42169740
Circumference
132480145.38779
Area
1.3966633215413E+15
Volume
3.9264619424623E+22
Surface area
5.5866532861654E+15
Circumference
132480145.38779
Perimeter
84339480
Area
444571742916900
Diagonal
29818509.114874
Surface area
2667430457501400
Volume
9.3737374050763E+21
Space diagonal
36520066.110985
Perimeter
63254610
Area
1.9250521158538E+14
Altitude
18260033.055492
Surface area
1.9250521158538E+14
Volume
1.1047055473652E+21
Height
9939503.0382912