21090910 is an even 8-digits composite number following 21090909
and preceding 21090911 . In scientific notation, it is written as 2.1090910 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 8419648 positive integers (up to 21090910) that are relatively prime to 21090910.
21090910 has 16 divisors, whose sum is 38038896
The reverse of 21090910 is 01909012
Previous prime number is 3593
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million ninety thousand nine hundred ten
Scientific notation
2.1090910 × 10^7
Engineering notation
2.1090910 × 10^6
Prime Factorization
2 × 5 × 3593 × 587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21090910
Product of the distinct prime numbers
The prime factorization of 21090910 is 2 × 5 × 3593 × 587.
Since it has a total of 4 prime factors.
6 , 7 , 70 , 10 , 978 , 274 , 2762 , 5907 , 33095 , 24741 , 552775 , 197365 , 7616688 , 9015637 , 57302384 , 83941186 , 91214139 , 467401236 , 9722900261 , 4833623961
n×2
42181820
n×3
63272730
n×4
84363640
n×5
105454550
n÷2
10545455
n÷3
7030303.3333333
n÷3
5272727.5
n÷5
4218182
n2
444826484628100
n3
9.3817953529076E+21
n4
1.9787060142659E+29
n5
4.1732710463342E+36
2 √n
4592.4840772723
3 √n
276.28996166435
4 √n
67.767869062501
5 √n
29.162118050728
1 , 2 , 5 , 10 , 587 , 1174 , 2935 , 3593 , 5870 , 7186 , 17965 , 35930 , 2109091 , 4218182 , 10545455 , 21090910
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
-21090909
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 21090910 can be divided by 16 positive divisors.
The sum of these divisors (counting 21090910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000011101001001011110
3
Ternary
1110200112021211
4
Quaternary
1100131021132
5
Quinary
20344402120
6
Senary
2032015034
8
Octal
120351136
10
Decimal
21090910
12
Duodecimal
709147a
16
Hexadecimal
141d25e
20
Vigesimal
6bg75a
36
Base36
ck1um
md5
67d8162deba52e1e7b321019c912b268
sha1
60779d01afda11c2ed87141b122f032bc3163906
sha256
ebb384fcf23d845ff0908363de464cd98aa805ef54425176e0f0d8d5286964be
sha512
78160c94c2d863e197167a1c6ee1828a9c030f3a36d4a59b2b9b0e0507fbd951ab46ecd46556fd89c85a44df7103bae26d014e0c7aecceebe012cd0a14086ed5
ripemd-160
b028faecd6dfed1e823ff5ca0e7d2ec8aa934d69
Diameter
42181820
Circumference
132518095.82705
Area
1.3974636162298E+15
Volume
3.929837247757E+22
Surface area
5.5898544649192E+15
Circumference
132518095.82705
Perimeter
84363640
Area
444826484628100
Diagonal
29827050.96479
Surface area
2668958907768600
Volume
9.3817953529076E+21
Space diagonal
36530527.697863
Perimeter
63272730
Area
1.9261551798203E+14
Altitude
18265263.848931
Surface area
1.9261551798203E+14
Volume
1.1056551856242E+21
Height
9942350.3215968