21491401 is an odd 8-digits composite number following 21491400
and preceding 21491402 . In scientific notation, it is written as 2.1491401 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 20748000 positive integers (up to 21491401) that are relatively prime to 21491401.
21491401 has 8 divisors, whose sum is 22238208
The reverse of 21491401 is 10419412
Previous prime number is 911
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million four hundred ninety-one thousand four hundred one
Scientific notation
2.1491401 × 10^7
Engineering notation
2.1491401 × 10^6
Prime Factorization
31 × 911 × 761
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21491401
Product of the distinct prime numbers
The prime factorization of 21491401 is 31 × 911 × 761.
Since it has a total of 3 prime factors.
2 , 3 , 58 , 52 , 916 , 530 , 3623 , 6330 , 24558 , 22032 , 791897 , 235533 , 522202 , 9728007 , 28553325 , 96313763 , 108218549 , 164550216 , 1668400979 , 8420704963
n×2
42982802
n×3
64474203
n×4
85965604
n×5
107457005
n÷2
10745700.5
n÷3
7163800.3333333
n÷3
5372850.25
n÷5
4298280.2
n2
461880316942801
n3
9.9264551054248E+21
n4
2.1333342717918E+29
n5
4.5848342302121E+36
2 √n
4635.8819009979
3 √n
278.02781237538
4 √n
68.087310866254
5 √n
29.272037005816
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
-21491400
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 21491401 can be divided by 8 positive divisors.
The sum of these divisors (counting 21491401) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110111011001001
3
Ternary
1111102212122211
4
Quaternary
1101332323021
5
Quinary
21000211101
6
Senary
2044345121
8
Octal
121767311
10
Decimal
21491401
12
Duodecimal
72451a1
16
Hexadecimal
147eec9
20
Vigesimal
6e68a1
36
Base36
csmvd
md5
0b5827182b94cb30d93aaed70bbaf0fc
sha1
d274e4f4c2821a7776fce6a8b7001431ccc9dcd8
sha256
b32ca67fa243eee1696dccea94b431fb72711ac59da837646585898c3410b507
sha512
7421f5ee21ea077b4b7368fcda12ca9bf868105f8b5e09caf7307c302885a2772f6cdcebd0d2795f40661150acb6730f8fb2e682c3fb6c0953375bbf6ff6ee53
ripemd-160
5af360f71bd10c4917dd9be5196e52af793db67a
Diameter
42982802
Circumference
135034454.9939
Area
1.4510398105452E+15
Volume
4.1579837913855E+22
Surface area
5.8041592421809E+15
Circumference
135034454.9939
Perimeter
85965604
Area
461880316942801
Diagonal
30393430.768599
Surface area
2771281901656806
Volume
9.9264551054248E+21
Space diagonal
37224198.457837
Perimeter
64474203
Area
2.0000004399024E+14
Altitude
18612099.228918
Surface area
2.0000004399024E+14
Volume
1.1698439530316E+21
Height
10131143.589533