21085955 is an odd 8-digits composite number following 21085954
and preceding 21085956 . In scientific notation, it is written as 2.1085955 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 15187680 positive integers (up to 21085955) that are relatively prime to 21085955.
21085955 has 8 divisors, whose sum is 25331712
The reverse of 21085955 is 55958012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eighty-five thousand nine hundred fifty-five
Scientific notation
2.1085955 × 10^7
Engineering notation
2.1085955 × 10^6
Prime Factorization
1177 × 5 × 3583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21085955
Product of the distinct prime numbers
The prime factorization of 21085955 is 1177 × 5 × 3583.
Since it has a total of 3 prime factors.
2 , 7 , 57 , 65 , 482 , 962 , 6579 , 5583 , 94134 , 29877 , 318537 , 928209 , 6910279 , 8160847 , 89740995 , 68593760 , 400135601 , 133334344 , 2608472597 , 2764921351
n×2
42171910
n×3
63257865
n×4
84343820
n×5
105429775
n÷2
10542977.5
n÷3
7028651.6666667
n÷3
5271488.75
n÷5
4217191
n2
444617498262025
n3
9.3751845605656E+21
n4
1.9768471976078E+29
n5
4.1683711050635E+36
2 √n
4591.9445771917
3 √n
276.26832321151
4 √n
67.763888445039
5 √n
29.16074767955
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
-21085954
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 21085955 can be divided by 8 positive divisors.
The sum of these divisors (counting 21085955) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011011111100000011
3
Ternary
1110200021111022
4
Quaternary
1100123330003
5
Quinary
20344222310
6
Senary
2031540055
8
Octal
120337403
10
Decimal
21085955
12
Duodecimal
708a62b
16
Hexadecimal
141bf03
20
Vigesimal
6bfehf
36
Base36
cjy0z
md5
66194e1b0ee592c888e7449f83f736bc
sha1
fc590ea7757c8edcc78bf31eb7b1a56ad3c766e4
sha256
719fce396684e04fbefef6ba26852519048101999a1df1756986b227d675731b
sha512
18afcee6fdef37f52f368f821070a01e2f3c4993b9f4ce33b87e53f89dceb6e1a4570074e981bb03bcc97fae88366f0ee05f3e4d6c7d4d7bd66a516f9864979e
ripemd-160
cf001845d7cd626fdc860da969f6f52409899fc2
Diameter
42171910
Circumference
132486962.64385
Area
1.3968070661975E+15
Volume
3.9270681255362E+22
Surface area
5.5872282647898E+15
Circumference
132486962.64385
Perimeter
84343820
Area
444617498262025
Diagonal
29820043.536589
Surface area
2667704989572150
Volume
9.3751845605656E+21
Space diagonal
36521945.386111
Perimeter
63257865
Area
1.92525024231E+14
Altitude
18260972.693056
Surface area
1.92525024231E+14
Volume
1.1048760962752E+21
Height
9940014.5121963