20897799 is an odd 8-digits composite number following 20897798
and preceding 20897800 . In scientific notation, it is written as 2.0897799 × 10^7.
The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors.
There are 12774528 positive integers (up to 20897799) that are relatively prime to 20897799.
20897799 has 16 divisors, whose sum is 30207072
The reverse of 20897799 is 99779802
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
twenty million eight hundred ninety-seven thousand seven hundred ninety-nine
Scientific notation
2.0897799 × 10^7
Engineering notation
2.0897799 × 10^6
Prime Factorization
3 × 13 × 157 × 3413
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20897799
Product of the distinct prime numbers
The prime factorization of 20897799 is 3 × 13 × 157 × 3413.
Since it has a total of 4 prime factors.
6 , 8 , 16 , 67 , 287 , 879 , 3473 , 1688 , 32329 , 56471 , 530828 , 198188 , 3159117 , 4833886 , 9287997 , 36935526 , 343173506 , 594257482 , 9563644415 , 6760889544
n×2
41795598
n×3
62693397
n×4
83591196
n×5
104488995
n÷2
10448899.5
n÷3
6965933
n÷3
5224449.75
n÷5
4179559.8
n2
436718003044401
n3
9.1264450473033E+21
n4
1.9072261418309E+29
n5
3.9856828559528E+36
2 √n
4571.4110513057
3 √n
275.44412642453
4 √n
67.612210815101
5 √n
29.108518988393
1 , 3 , 13 , 39 , 157 , 471 , 2041 , 3413 , 6123 , 10239 , 44369 , 133107 , 535841 , 1607523 , 6965933 , 20897799
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20897798
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20897799 can be divided by 16 positive divisors.
The sum of these divisors (counting 20897799) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111101110000000000111
3
Ternary
1110022201101120
4
Quaternary
1033232000013
5
Quinary
20322212144
6
Senary
2023525023
8
Octal
117560007
10
Decimal
20897799
12
Duodecimal
6bb9773
16
Hexadecimal
13ee007
20
Vigesimal
6ac49j
36
Base36
cfwuf
md5
72bad92c846676f93e25819d700b2c96
sha1
4a56d38cc55d611199da44d8da306404ac63963b
sha256
04eeeb413e74b4538f7b9532de3bce096d3f4d334f908f6be00e4298e68b596a
sha512
f1579567bbe8aef7a41df7a18deae4a9c039259208923901f4dfa1c629df3c3e5640d78708d1ca6de5ace2f363315b57c2275ac80299a5be7646f0562aa9170e
ripemd-160
6912f221f67d7035e8ad88cf77ec96920c1ca9bd
Diameter
41795598
Circumference
131304743.62919
Area
1.3719900700547E+15
Volume
3.8228763618665E+22
Surface area
5.4879602802188E+15
Circumference
131304743.62919
Perimeter
83591196
Area
436718003044401
Diagonal
29553950.769547
Surface area
2620308018266406
Volume
9.1264450473033E+21
Space diagonal
36196049.634362
Perimeter
62693397
Area
1.8910444246323E+14
Altitude
18098024.817181
Surface area
1.8910444246323E+14
Volume
1.0755618635124E+21
Height
9851316.9231823