21420797 is an odd 8-digits composite number following 21420796
and preceding 21420798 . In scientific notation, it is written as 2.1420797 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 20488952 positive integers (up to 21420797) that are relatively prime to 21420797.
21420797 has 6 divisors, whose sum is 22393182
The reverse of 21420797 is 79702412
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred twenty thousand seven hundred ninety-seven
Scientific notation
2.1420797 × 10^7
Engineering notation
2.1420797 × 10^6
Prime Factorization
23 × 23 × 40493
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
931339
Product of the distinct prime numbers
The prime factorization of 21420797 is 23 × 23 × 40493.
Since it has a total of 3 prime factors.
5 , 10 , 92 , 82 , 336 , 217 , 7192 , 2346 , 40781 , 1919 , 89044 , 754727 , 3779644 , 506196 , 64865108 , 10143008 , 406806822 , 446256766 , 357079708 , 5438893341
n×2
42841594
n×3
64262391
n×4
85683188
n×5
107103985
n÷2
10710398.5
n÷3
7140265.6666667
n÷3
5355199.25
n÷5
4284159.4
n2
458850544115209
n3
9.8289443588314E+21
n4
2.1054382183482E+29
n5
4.5100164671279E+36
2 √n
4628.2606884228
3 √n
277.72301743059
4 √n
68.031321377898
5 √n
29.25277866037
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21420796
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21420797 can be divided by 6 positive divisors.
The sum of these divisors (counting 21420797) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010001101101101011111101
3
Ternary
1111022021210212
4
Quaternary
1101231223331
5
Quinary
20440431142
6
Senary
2043042205
8
Octal
121555375
10
Decimal
21420797
12
Duodecimal
7210365
16
Hexadecimal
146dafd
20
Vigesimal
6dhbjh
36
Base36
cr4e5
md5
afcc66f74968a84f1081efd4f44115da
sha1
4c2a2e9ddc2e57afab22457e25ce3e3275712e73
sha256
6fc1ff9db8543eef37b1c8e95d629d9b1f32be0dd180896fd12d4ccf30dee60f
sha512
c7dc0b3525e96c6aadf3b803e91a125812931d8e6c5c2a35c7141ff9474208f336759a013edbe0727d75aeef2431d0a65ff67edc934ded7d3fb780453b2b6a28
ripemd-160
d361acbdb50222fb5caafddb9ce0e789700501f4
Diameter
42841594
Circumference
134590836.97848
Area
1.441521498488E+15
Volume
4.1171385853664E+22
Surface area
5.7660859939521E+15
Circumference
134590836.97848
Perimeter
85683188
Area
458850544115209
Diagonal
30293581.634241
Surface area
2753103264691254
Volume
9.8289443588314E+21
Space diagonal
37101908.742619
Perimeter
64262391
Area
1.9868811387204E+14
Altitude
18550954.371309
Surface area
1.9868811387204E+14
Volume
1.1583522013392E+21
Height
10097860.544747