21129218 is an even 8-digits composite number following 21129217
and preceding 21129219 . In scientific notation, it is written as 2.1129218 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 9604180 positive integers (up to 21129218) that are relatively prime to 21129218.
21129218 has 8 divisors, whose sum is 34575120
The reverse of 21129218 is 81292112
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred twenty-nine thousand two hundred eighteen
Scientific notation
2.1129218 × 10^7
Engineering notation
2.1129218 × 10^6
Prime Factorization
2 × 11 × 960419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21129218
Product of the distinct prime numbers
The prime factorization of 21129218 is 2 × 11 × 960419.
Since it has a total of 3 prime factors.
4 , 3 , 10 , 17 , 771 , 657 , 7523 , 4120 , 84908 , 55578 , 639728 , 854107 , 9826155 , 643749 , 36503193 , 58080474 , 94855122 , 764687938 , 4419804261 , 3622007593
n×2
42258436
n×3
63387654
n×4
84516872
n×5
105646090
n÷2
10564609
n÷3
7043072.6666667
n÷3
5282304.5
n÷5
4225843.6
n2
446443853291524
n3
9.4330095009566E+21
n4
1.9931211414178E+29
n5
4.2113091097426E+36
2 √n
4596.6529127181
3 √n
276.45713817524
4 √n
67.798620286243
5 √n
29.172703953973
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21129217
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21129218 can be divided by 8 positive divisors.
The sum of these divisors (counting 21129218) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100110100000000010
3
Ternary
1110202110211122
4
Quaternary
1100212200002
5
Quinary
20402113333
6
Senary
2032512242
8
Octal
120464002
10
Decimal
21129218
12
Duodecimal
70ab682
16
Hexadecimal
1426802
20
Vigesimal
6c130i
36
Base36
ckveq
md5
def9e878a44da45102b729e4582ab422
sha1
296253d75db170fc95bc78a9e1c648b7c56a4e89
sha256
4dae5cfde65a5c37ca58fe85f8ab41cf39937f6da68491296aa857dc72942105
sha512
9eff76d7b69d5aa88bfe67aa693f8cf79adeb04ee18cd92ae646d06ccd9255aee6325e5c878466a8dbdb87f92ae866565cd402195f6659121ab77d5b024b2900
ripemd-160
e4453e8f6fa1ca5b2dba814b7d044019a3fc3fd5
Diameter
42258436
Circumference
132758792.08979
Area
1.402544729741E+15
Volume
3.9512897799264E+22
Surface area
5.6101789189639E+15
Circumference
132758792.08979
Perimeter
84516872
Area
446443853291524
Diagonal
29881226.657938
Surface area
2678663119749144
Volume
9.4330095009566E+21
Space diagonal
36596879.100199
Perimeter
63387654
Area
1.9331585915694E+14
Altitude
18298439.550099
Surface area
1.9331585915694E+14
Volume
1.1116908308539E+21
Height
9960408.8859792