21091489 is an odd 8-digits prime number following 21091488
and preceding 21091490 . In scientific notation, it is written as 2.1091489 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 21091488 positive integers (up to 21091489) that are relatively prime to 21091489.
21091489 has 2 divisors, whose sum is 21091490
The reverse of 21091489 is 98419012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million ninety-one thousand four hundred eighty-nine
Scientific notation
2.1091489 × 10^7
Engineering notation
2.1091489 × 10^6
Prime Factorization
21091489
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21091489
Product of the distinct prime numbers
The prime factorization of 21091489 is 21091489.
Since it has a total of 1 prime factors.
10 , 4 , 41 , 18 , 221 , 912 , 5202 , 6228 , 12223 , 85885 , 369725 , 789489 , 8483679 , 5137987 , 89906516 , 60596999 , 53173678 , 214522547 , 1625382311 , 8270219122
n×2
42182978
n×3
63274467
n×4
84365956
n×5
105457445
n÷2
10545744.5
n÷3
7030496.3333333
n÷3
5272872.25
n÷5
4218297.8
n2
444850908237121
n3
9.3825680377232E+21
n4
1.9789233055939E+29
n5
4.1738439131778E+36
2 √n
4592.5471146195
3 √n
276.29248993243
4 √n
67.76833415851
5 √n
29.162278164075
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21091490
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10545745
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.5472234916
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999905175
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21091489 can be divided by 2 positive divisors.
The sum of these divisors (counting 21091489) is 21091490, the average is 10545745.
Base
System
Value
2
Binary
1010000011101010010100001
3
Ternary
1110200120002021
4
Quaternary
1100131102201
5
Quinary
20344411424
6
Senary
2032021441
8
Octal
120352241
10
Decimal
21091489
12
Duodecimal
7091881
16
Hexadecimal
141d4a1
20
Vigesimal
6bg8e9
36
Base36
ck2ap
md5
3fd6e25c862ab26850152ef18158e0c1
sha1
905689850294709bbba92c435a7136f2af2a303d
sha256
c51ae8083cf947f96c384aef5dbdae8b89069e813c494e11b011382cff085ae6
sha512
dd82afcece7a6987f01c1bfbcb7bc1443065dc1e50f89b29062be75d77aebcb36d84f07b881f0c48ace42149ce2041e952ee2035f5fa66d73e7a137f3f362ce4
ripemd-160
982f1bb69821ecab3bef242c024577bb470bf116
Diameter
42182978
Circumference
132521733.79134
Area
1.3975403452605E+15
Volume
3.9301609092157E+22
Surface area
5.5901613810419E+15
Circumference
132521733.79134
Perimeter
84365956
Area
444850908237121
Diagonal
29827869.794443
Surface area
2669105449422726
Volume
9.3825680377232E+21
Space diagonal
36531530.55528
Perimeter
63274467
Area
1.9262609371496E+14
Altitude
18265765.27764
Surface area
1.9262609371496E+14
Volume
1.105746247403E+21
Height
9942623.2648143