21494081 is an odd 8-digits composite number following 21494080
and preceding 21494082 . In scientific notation, it is written as 2.1494081 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 18380448 positive integers (up to 21494081) that are relatively prime to 21494081.
21494081 has 8 divisors, whose sum is 24622080
The reverse of 21494081 is 18049412
Previous prime number is 457
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million four hundred ninety-four thousand eighty-one
Scientific notation
2.1494081 × 10^7
Engineering notation
2.1494081 × 10^6
Prime Factorization
7 × 457 × 6719
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494081
Product of the distinct prime numbers
The prime factorization of 21494081 is 7 × 457 × 6719.
Since it has a total of 3 prime factors.
7 , 8 , 28 , 23 , 345 , 501 , 1250 , 5697 , 68004 , 65771 , 40929 , 684226 , 2171960 , 7269519 , 8166481 , 27061705 , 910120202 , 253194229 , 66809148 , 8753619847
n×2
42988162
n×3
64482243
n×4
85976324
n×5
107470405
n÷2
10747040.5
n÷3
7164693.6666667
n÷3
5373520.25
n÷5
4298816.2
n2
461995518034561
n3
9.9301690862718E+21
n4
2.1343985868402E+29
n5
4.5876936111829E+36
2 √n
4636.1709416284
3 √n
278.03936868057
4 √n
68.089433406575
5 √n
29.27276702008
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
-21494080
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 21494081 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111100101000001
3
Ternary
1111110000100002
4
Quaternary
1101333211001
5
Quinary
21000302311
6
Senary
2044405345
8
Octal
121774501
10
Decimal
21494081
12
Duodecimal
7246855
16
Hexadecimal
147f941
20
Vigesimal
6e6f41
36
Base36
csoxt
md5
a3fd92c244e9925f6cb6b151d7dfc4c3
sha1
7ce1f09d53f26e3b2cf1204bbc50a3e88a6a2fd3
sha256
43d6e20edd717949470addf29c2db15b5a4f29dc6cb771801aa23e85064093d0
sha512
79f9638ef3a8e5718f0fb875841f2865e5ae9d554e876545495fca13d603e81e0cb380025426d2f476df28c55249ebfa62cb784c6321623b350a7af9cb548a5b
ripemd-160
82cd1b88097ff91a7fb7ed5842faaa098553823d
Diameter
42988162
Circumference
135051293.93053
Area
1.4514017254488E+15
Volume
4.1595395000448E+22
Surface area
5.8056069017952E+15
Circumference
135051293.93053
Perimeter
85976324
Area
461995518034561
Diagonal
30397220.860946
Surface area
2771973108207366
Volume
9.9301690862718E+21
Space diagonal
37228840.354001
Perimeter
64482243
Area
2.0004992752624E+14
Altitude
18614420.177
Surface area
2.0004992752624E+14
Volume
1.170281649872E+21
Height
10132406.953649