21921710 is an even 8-digits composite number following 21921709
and preceding 21921711 . In scientific notation, it is written as 2.1921710 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 8657376 positive integers (up to 21921710) that are relatively prime to 21921710.
21921710 has 16 divisors, whose sum is 39960000
The reverse of 21921710 is 01712912
Previous prime number is 79
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million nine hundred twenty-one thousand seven hundred ten
Scientific notation
2.1921710 × 10^7
Engineering notation
2.1921710 × 10^6
Prime Factorization
2 × 5 × 79 × 27749
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21921710
Product of the distinct prime numbers
The prime factorization of 21921710 is 2 × 5 × 79 × 27749.
Since it has a total of 4 prime factors.
3 , 7 , 21 , 81 , 999 , 667 , 8614 , 6704 , 74308 , 21316 , 369028 , 956727 , 2530635 , 2333928 , 9636797 , 73426820 , 725485178 , 830252553 , 5996377698 , 9959889408
n×2
43843420
n×3
65765130
n×4
87686840
n×5
109608550
n÷2
10960855
n÷3
7307236.6666667
n÷3
5480427.5
n÷5
4384342
n2
480561369324100
n3
1.0534726975526E+22
n4
2.3093922968665E+29
n5
5.0625828208142E+36
2 √n
4682.0625796758
3 √n
279.87115670765
4 √n
68.425598862383
5 √n
29.388328495964
1 , 2 , 5 , 10 , 79 , 158 , 395 , 790 , 27749 , 55498 , 138745 , 277490 , 2192171 , 4384342 , 10960855 , 21921710
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
-21921709
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 21921710 can be divided by 16 positive divisors.
The sum of these divisors (counting 21921710) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011100111111110101110
3
Ternary
1112020201221012
4
Quaternary
1103213332232
5
Quinary
21102443320
6
Senary
2101505222
8
Octal
123477656
10
Decimal
21921710
12
Duodecimal
7412212
16
Hexadecimal
14e7fae
20
Vigesimal
6h045a
36
Base36
d1uwe
md5
a9a138e5ad4091c2c1b8dad8f747d53d
sha1
8bd62b72ead0f3f9a67c7d22f8f8d72fdd2ef137
sha256
d9cc6dd60a2e7016e9fb57e3a7b5482bb114edc51a2df9ecd349855edbe313fd
sha512
171d17fa45a83c67f106ce09a9d1f5603ad4a85972b3b18a9ac3a7d97effb17dfa7e271da57fe9c0ef2402f0f8df7397b8ed516c01be518277b22e22a85056d9
ripemd-160
d9b1836e0b64127fde8c28063843616d491019a7
Diameter
43843420
Circumference
137738166.18025
Area
1.5097280674676E+15
Volume
4.4127761165181E+22
Surface area
6.0389122698706E+15
Circumference
137738166.18025
Perimeter
87686840
Area
480561369324100
Diagonal
31001979.59241
Surface area
2883368215944600
Volume
1.0534726975526E+22
Space diagonal
37969515.508791
Perimeter
65765130
Area
2.0808917695605E+14
Altitude
18984757.754395
Surface area
2.0808917695605E+14
Volume
1.2415294803905E+21
Height
10333993.19747