21494855 is an odd 8-digits composite number following 21494854
and preceding 21494856 . In scientific notation, it is written as 2.1494855 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 17195880 positive integers (up to 21494855) that are relatively prime to 21494855.
21494855 has 4 divisors, whose sum is 25793832
The reverse of 21494855 is 55849412
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-four thousand eight hundred fifty-five
Scientific notation
2.1494855 × 10^7
Engineering notation
2.1494855 × 10^6
Prime Factorization
5 × 4298971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21494855
Product of the distinct prime numbers
The prime factorization of 21494855 is 5 × 4298971.
Since it has a total of 2 prime factors.
10 , 8 , 92 , 71 , 614 , 156 , 3354 , 7015 , 38250 , 44572 , 13828 , 196611 , 6734478 , 9723177 , 9724757 , 19956040 , 428862050 , 626439075 , 3737036153 , 4555317062
n×2
42989710
n×3
64484565
n×4
85979420
n×5
107474275
n÷2
10747427.5
n÷3
7164951.6666667
n÷3
5373713.75
n÷5
4298971
n2
462028791471025
n3
9.9312418784949E+21
n4
2.1347060414818E+29
n5
4.5885196829274E+36
2 √n
4636.2544149345
3 √n
278.04270603173
4 √n
68.090046371952
5 √n
29.272977839006
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21494854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21494855 can be divided by 4 positive divisors.
The sum of these divisors (counting 21494855) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111110001000111
3
Ternary
1111110001101202
4
Quaternary
1101333301013
5
Quinary
21000313410
6
Senary
2044413115
8
Octal
121776107
10
Decimal
21494855
12
Duodecimal
724719b
16
Hexadecimal
147fc47
20
Vigesimal
6e6h2f
36
Base36
cspjb
md5
2af54859426c2010ad68d9dbd4662430
sha1
25900a61a3511a3f768a70ee0e6af8da59884ea4
sha256
283a19230c7f80a0c332de16d758d520fe7da2090d170f5d618bf6712cd1188c
sha512
006d8fd87150ebc57f8c58a050a49fd0f9a727e55f91d823cd6a9ae22821d1a37b528854e9b77236360d82071c0b9c32f8425598c169a192bcccec80343e260e
ripemd-160
97b59cebf957ce1308b91f07d6e9ab62c9f293a7
Diameter
42989710
Circumference
135056157.11596
Area
1.4515062570323E+15
Volume
4.1599888702004E+22
Surface area
5.8060250281294E+15
Circumference
135056157.11596
Perimeter
85979420
Area
462028791471025
Diagonal
30398315.462243
Surface area
2772172748826150
Volume
9.9312418784949E+21
Space diagonal
37230180.961326
Perimeter
64484565
Area
2.0006433534687E+14
Altitude
18615090.480663
Surface area
2.0006433534687E+14
Volume
1.1704080796479E+21
Height
10132771.820748