21081497 is an odd 8-digits prime number following 21081496
and preceding 21081498 . In scientific notation, it is written as 2.1081497 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21081496 positive integers (up to 21081497) that are relatively prime to 21081497.
21081497 has 2 divisors, whose sum is 21081498
The reverse of 21081497 is 79418012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-one thousand four hundred ninety-seven
Scientific notation
2.1081497 × 10^7
Engineering notation
2.1081497 × 10^6
Prime Factorization
21081497
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21081497
Product of the distinct prime numbers
The prime factorization of 21081497 is 21081497.
Since it has a total of 1 prime factors.
10 , 9 , 42 , 54 , 719 , 935 , 6043 , 6698 , 51376 , 73621 , 429282 , 627313 , 3259258 , 6271213 , 94031919 , 68381988 , 791927966 , 398838777 , 8425072327 , 4556731933
n×2
42162994
n×3
63244491
n×4
84325988
n×5
105407485
n÷2
10540748.5
n÷3
7027165.6666667
n÷3
5270374.25
n÷5
4216299.4
n2
444429515761009
n3
9.3692395032272E+21
n4
1.9751759447956E+29
n5
4.1639665754682E+36
2 √n
4591.4591362659
3 √n
276.24885225733
4 √n
67.760306494776
5 √n
29.159514540161
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21081498
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10540749
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4591.4592451638
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051301
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21081497 can be divided by 2 positive divisors.
The sum of these divisors (counting 21081497) is 21081498, the average is 10540749.
Base
System
Value
2
Binary
1010000011010110110011001
3
Ternary
1110200001101012
4
Quaternary
1100122312121
5
Quinary
20344101442
6
Senary
2031503305
8
Octal
120326631
10
Decimal
21081497
12
Duodecimal
7087b35
16
Hexadecimal
141ad99
20
Vigesimal
6bf3eh
36
Base36
cjul5
md5
fd48fecfc3a07426b6243ce77bc9282a
sha1
51a794c3221bdcc672e6a58d25dfab3c6fe047bf
sha256
6254bd7233a5502aef3ecf6dd400d853f47ca0d599cda82e85f7728c561f1a4d
sha512
5de9f12d83703250780ec3ebb89b244ae7b9d5e717da8e9e3141114343800b06db634e9351593b1b61f249e232b46a7ccad4853f8628bb6681d30556dbea32fb
ripemd-160
279b1467d6aec7ce315eae825aa91765c12f2009
Diameter
42162994
Circumference
132458952.20375
Area
1.3962165017533E+15
Volume
3.9245778657416E+22
Surface area
5.584866007013E+15
Circumference
132458952.20375
Perimeter
84325988
Area
444429515761009
Diagonal
29813738.972528
Surface area
2666577094566054
Volume
9.3692395032272E+21
Space diagonal
36514223.903611
Perimeter
63244491
Area
1.9244362542033E+14
Altitude
18257111.951805
Surface area
1.9244362542033E+14
Volume
1.1041754645488E+21
Height
9937912.9908426