21491346 is an even 8-digits composite number following 21491345
and preceding 21491347 . In scientific notation, it is written as 2.1491346 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 6994944 positive integers (up to 21491346) that are relatively prime to 21491346.
21491346 has 32 divisors, whose sum is 44009280
The reverse of 21491346 is 64319412
Previous prime number is 353
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-one thousand three hundred forty-six
Scientific notation
2.1491346 × 10^7
Engineering notation
2.1491346 × 10^6
Prime Factorization
2 × 3 × 73 × 353 × 139
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21491346
Product of the distinct prime numbers
The prime factorization of 21491346 is 2 × 3 × 73 × 353 × 139.
Since it has a total of 5 prime factors.
4 , 8 , 91 , 28 , 201 , 710 , 3951 , 9721 , 45616 , 75151 , 245788 , 702313 , 2038435 , 6413473 , 75761809 , 90665018 , 142913867 , 421014215 , 1047562651 , 4095108728
n×2
42982692
n×3
64474038
n×4
85965384
n×5
107456730
n÷2
10745673
n÷3
7163782
n÷3
5372836.5
n÷5
4298269.2
n2
461877952891716
n3
9.9263788953676E+21
n4
2.1333124336744E+29
n5
4.5847755638199E+36
2 √n
4635.8759690052
3 √n
278.02757520234
4 √n
68.087267304579
5 √n
29.272022023418
1 , 2 , 3 , 6 , 73 , 139 , 146 , 219 , 278 , 353 , 417 , 438 , 706 , 834 , 1059 , 2118 , 10147 , 20294 , 25769 , 30441 , 49067 , 51538 , 60882 , 77307 , 98134 , 147201 , 154614 , 294402 , 3581891 , 7163782 , 10745673 , 21491346
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491345
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491346 can be divided by 32 positive divisors.
The sum of these divisors (counting 21491346) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010001111110111010010010
3
Ternary
1111102212120210
4
Quaternary
1101332322102
5
Quinary
21000210341
6
Senary
2044344550
8
Octal
121767222
10
Decimal
21491346
12
Duodecimal
7245156
16
Hexadecimal
147ee92
20
Vigesimal
6e6876
36
Base36
csmtu
md5
6811092f06b2a8837ddeb68e2e48d234
sha1
cba00cb9d6b72bbf5a7919952f76f23c4228fb83
sha256
a563daf8cb00a86c8e79b5be34d4d45d7c05b120f5ff33a50e6f4feece47e500
sha512
860c928fed04044889fbea63a9288368df66938970efa2986a0c9df545f4564c4131919ecc559a6074f5e9abbb2a4879740147265b1dfeae730eb76f34c35330
ripemd-160
6d1aae7a12d8219bb3237c43fd37fe2ad339c190
Diameter
42982692
Circumference
135034109.41871
Area
1.4510323836597E+15
Volume
4.1579518685914E+22
Surface area
5.8041295346388E+15
Circumference
135034109.41871
Perimeter
85965384
Area
461877952891716
Diagonal
30393352.986853
Surface area
2771267717350296
Volume
9.9263788953676E+21
Space diagonal
37224103.195042
Perimeter
64474038
Area
1.9999902032609E+14
Altitude
18612051.597521
Surface area
1.9999902032609E+14
Volume
1.1698349715902E+21
Height
10131117.662284