21494869 is an odd 8-digits composite number following 21494868
and preceding 21494870 . In scientific notation, it is written as 2.1494869 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 19509840 positive integers (up to 21494869) that are relatively prime to 21494869.
21494869 has 8 divisors, whose sum is 23486112
The reverse of 21494869 is 96849412
Previous prime number is 2213
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million four hundred ninety-four thousand eight hundred sixty-nine
Scientific notation
2.1494869 × 10^7
Engineering notation
2.1494869 × 10^6
Prime Factorization
11 × 2213 × 883
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494869
Product of the distinct prime numbers
The prime factorization of 21494869 is 11 × 2213 × 883.
Since it has a total of 3 prime factors.
1 , 4 , 95 , 70 , 349 , 150 , 5386 , 5365 , 43626 , 25296 , 544013 , 160970 , 297424 , 2538207 , 76519157 , 60560621 , 820149125 , 779360143 , 1381450678 , 2038436033
n×2
42989738
n×3
64484607
n×4
85979476
n×5
107474345
n÷2
10747434.5
n÷3
7164956.3333333
n÷3
5373717.25
n÷5
4298973.8
n2
462029393327161
n3
9.9312612837168E+21
n4
2.1347116029826E+29
n5
4.5885346258892E+36
2 √n
4636.2559247738
3 √n
278.04276639652
4 √n
68.090057459028
5 √n
29.272981652212
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
-21494868
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 21494869 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494869) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111110001010101
3
Ternary
1111110001102021
4
Quaternary
1101333301111
5
Quinary
21000313434
6
Senary
2044413141
8
Octal
121776125
10
Decimal
21494869
12
Duodecimal
72471b1
16
Hexadecimal
147fc55
20
Vigesimal
6e6h39
36
Base36
cspjp
md5
f7a42afa3cda231f5893a4e3e0b74040
sha1
38f5ff691bcef983869d258d3ce9421513eece18
sha256
6f8979757c2d00b008467adda569b0a0f227284e060a77b71cc37eb17c902cb3
sha512
beef5d3098293945c8f404a388f293c6f0f1d6758c0f516106b8a2a770a32dbd6d371277bd39be366fe5b8446bb163494d4fd829813fecd23d32100e191d6f76
ripemd-160
8dc27fd7546462ae73fba493d3e6298b8b7b7133
Diameter
42989738
Circumference
135056245.08055
Area
1.4515081478192E+15
Volume
4.1599969986407E+22
Surface area
5.8060325912766E+15
Circumference
135056245.08055
Perimeter
85979476
Area
462029393327161
Diagonal
30398335.261233
Surface area
2772176359962966
Volume
9.9312612837168E+21
Space diagonal
37230205.210037
Perimeter
64484607
Area
2.0006459595822E+14
Altitude
18615102.605019
Surface area
2.0006459595822E+14
Volume
1.1704103665753E+21
Height
10132778.420411