21497639 is an odd 8-digits composite number following 21497638
and preceding 21497640 . In scientific notation, it is written as 2.1497639 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 20192256 positive integers (up to 21497639) that are relatively prime to 21497639.
21497639 has 8 divisors, whose sum is 22808160
The reverse of 21497639 is 93679412
Previous prime number is 673
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million four hundred ninety-seven thousand six hundred thirty-nine
Scientific notation
2.1497639 × 10^7
Engineering notation
2.1497639 × 10^6
Prime Factorization
17 × 673 × 1879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497639
Product of the distinct prime numbers
The prime factorization of 21497639 is 17 × 673 × 1879.
Since it has a total of 3 prime factors.
5 , 5 , 90 , 47 , 749 , 117 , 1528 , 8924 , 23245 , 6156 , 762347 , 296695 , 8303582 , 9903908 , 68065231 , 38374753 , 127297015 , 962436934 , 391342970 , 4664420901
n×2
42995278
n×3
64492917
n×4
85990556
n×5
107488195
n÷2
10748819.5
n÷3
7165879.6666667
n÷3
5374409.75
n÷5
4299527.8
n2
462148482574321
n3
9.9351012427805E+21
n4
2.1358121994575E+29
n5
4.5914919635733E+36
2 √n
4636.5546475805
3 √n
278.05470948522
4 √n
68.092251009792
5 √n
29.273736083232
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
-21497638
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 21497639 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011100100111
3
Ternary
1111110012012212
4
Quaternary
1102000130213
5
Quinary
21000411024
6
Senary
2044434035
8
Octal
122003447
10
Decimal
21497639
12
Duodecimal
724891b
16
Hexadecimal
1480727
20
Vigesimal
6e741j
36
Base36
csron
md5
e41630ba2a8c1fa258a71c48eebcd185
sha1
e042736d378f7487980cc931e40cc3e0ad13ee12
sha256
0479a5546a87e4940b5294111c2dae0dcb0428a1792b20b1b1b46de3220eb79c
sha512
c2b01883b4f16c244c612b0d4dc63f42ce90372e8faf58b915392a36c226fa8459a87e191c73d22f60f4a4e18afeb7294389dc244fb3d3f022f7d180acef8d71
ripemd-160
bd8410a6a279997d5cdbc60b967b360add46ea10
Diameter
42995278
Circumference
135073649.50385
Area
1.4518822777232E+15
Volume
4.161605476932E+22
Surface area
5.8075291108926E+15
Circumference
135073649.50385
Perimeter
85990556
Area
462148482574321
Diagonal
30402252.632801
Surface area
2772890895445926
Volume
9.9351012427805E+21
Space diagonal
37235002.990774
Perimeter
64492917
Area
2.001161631149E+14
Altitude
18617501.495387
Surface area
2.001161631149E+14
Volume
1.1708629100908E+21
Height
10134084.210934