21006870 is an even 8-digits composite number following 21006869
and preceding 21006871 . In scientific notation, it is written as 2.1006870 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 5601824 positive integers (up to 21006870) that are relatively prime to 21006870.
21006870 has 16 divisors, whose sum is 50416560
The reverse of 21006870 is 07860012
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million six thousand eight hundred seventy
Scientific notation
2.1006870 × 10^7
Engineering notation
2.1006870 × 10^6
Prime Factorization
2 × 3 × 5 × 700229
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21006870
Product of the distinct prime numbers
The prime factorization of 21006870 is 2 × 3 × 5 × 700229.
Since it has a total of 4 prime factors.
5 , 4 , 10 , 63 , 321 , 949 , 5321 , 2803 , 20911 , 57018 , 910410 , 43237 , 9780923 , 2386945 , 30233938 , 43676040 , 410569017 , 363839115 , 4849575690 , 9246600740
n×2
42013740
n×3
63020610
n×4
84027480
n×5
105034350
n÷2
10503435
n÷3
7002290
n÷3
5251717.5
n÷5
4201374
n2
441288587196900
n3
9.2700919837289E+21
n4
1.9473561719024E+29
n5
4.0907857946851E+36
2 √n
4583.325212114
3 √n
275.92249976922
4 √n
67.700260059427
5 √n
29.138840724352
1 , 2 , 3 , 5 , 6 , 10 , 15 , 30 , 700229 , 1400458 , 2100687 , 3501145 , 4201374 , 7002290 , 10503435 , 21006870
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21006869
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21006870 can be divided by 16 positive divisors.
The sum of these divisors (counting 21006870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001000101000010110
3
Ternary
1110112021000020
4
Quaternary
1100020220112
5
Quinary
20334204440
6
Senary
2030130010
8
Octal
120105026
10
Decimal
21006870
12
Duodecimal
7050906
16
Hexadecimal
1408a16
20
Vigesimal
6b5h3a
36
Base36
ci906
md5
89da01504ef5087e604818cd28acbf62
sha1
8b0aa89356bdb2a8e97cccdea2bca19a844d418a
sha256
e26ca8c67363b8cdbf21a552084812685340c2b29cf6cf19564628570d1654c4
sha512
168b1aa5ebb32455f5a411a2cc745c7879d7b5a9be8755dba49a9b4de268d4d65fb75b973626d4f7b9c8fe55287bbf4bd2bca6b3fce830307e279a9c45fe5a90
ripemd-160
995204cc5ae205d3ebafa13623c37a7913ca8060
Diameter
42013740
Circumference
131990056.93383
Area
1.3863489836508E+15
Volume
3.8830470498913E+22
Surface area
5.5453959346032E+15
Circumference
131990056.93383
Perimeter
84027480
Area
441288587196900
Diagonal
29708200.457008
Surface area
2647731523181400
Volume
9.2700919837289E+21
Space diagonal
36384966.147994
Perimeter
63020610
Area
1.9108356345633E+14
Altitude
18192483.073997
Surface area
1.9108356345633E+14
Volume
1.0924908173196E+21
Height
9902733.4856695