20897789 is an odd 8-digits composite number following 20897788
and preceding 20897790 . In scientific notation, it is written as 2.0897789 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 6 positive divisors.
There are 18997880 positive integers (up to 20897789) that are relatively prime to 20897789.
20897789 has 6 divisors, whose sum is 22970430
The reverse of 20897789 is 98779802
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty million eight hundred ninety-seven thousand seven hundred eighty-nine
Scientific notation
2.0897789 × 10^7
Engineering notation
2.0897789 × 10^6
Prime Factorization
11 × 11 × 172709
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1899799
Product of the distinct prime numbers
The prime factorization of 20897789 is 11 × 11 × 172709.
Since it has a total of 3 prime factors.
8 , 10 , 24 , 30 , 350 , 462 , 6564 , 9738 , 33360 , 8808 , 37501 , 270351 , 8733562 , 1555239 , 92199221 , 53310800 , 17817333 , 354311706 , 9480977445 , 6383932796
n×2
41795578
n×3
62693367
n×4
83591156
n×5
104488945
n÷2
10448894.5
n÷3
6965929.6666667
n÷3
5224447.25
n÷5
4179557.8
n2
436717585088521
n3
9.1264319457695E+21
n4
1.9072224912555E+29
n5
3.9856733198312E+36
2 √n
4571.4099575514
3 √n
275.44408248941
4 √n
67.612202726663
5 √n
29.108516202595
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
-20897788
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 20897789 can be divided by 6 positive divisors.
The sum of these divisors (counting 20897789) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001111101101111111111101
3
Ternary
1110022201101012
4
Quaternary
1033231333331
5
Quinary
20322212124
6
Senary
2023525005
8
Octal
117557775
10
Decimal
20897789
12
Duodecimal
6bb9765
16
Hexadecimal
13edffd
20
Vigesimal
6ac499
36
Base36
cfwu5
md5
98a2b76a54051ed7103b892397f1f5c3
sha1
f8151a2119c4f8a40de26189582a572d12b2f4b5
sha256
d61539409df565679cd136af1f0500887a17e1857561f4663a4665b2ff846791
sha512
a1e6a8879064b7551ed502880c96082584e20aba8443d71bd0694ef8035d9f2d3c2c3b6024e577c74408b642f35754a4ef947625cbd84197a8448e73f50ba801
ripemd-160
77334239af2f015a906a9fde0c5b49c3bf784813
Diameter
41795578
Circumference
131304680.79734
Area
1.3719887570076E+15
Volume
3.8228708739089E+22
Surface area
5.4879550280303E+15
Circumference
131304680.79734
Perimeter
83591156
Area
436717585088521
Diagonal
29553936.627411
Surface area
2620305510531126
Volume
9.1264319457695E+21
Space diagonal
36196032.313854
Perimeter
62693367
Area
1.8910426148303E+14
Altitude
18098016.156927
Surface area
1.8910426148303E+14
Volume
1.0755603194819E+21
Height
9851312.2091371