20189897 is an odd 8-digits composite number following 20189896
and preceding 20189898 . In scientific notation, it is written as 2.0189897 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 14515200 positive integers (up to 20189897) that are relatively prime to 20189897.
20189897 has 8 divisors, whose sum is 20423112
The reverse of 20189897 is 79898102
Previous prime number is 217
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million one hundred eighty-nine thousand eight hundred ninety-seven
Scientific notation
2.0189897 × 10^7
Engineering notation
2.0189897 × 10^6
Prime Factorization
221 × 217 × 421
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20189897
Product of the distinct prime numbers
The prime factorization of 20189897 is 221 × 217 × 421.
Since it has a total of 3 prime factors.
9 , 1 , 73 , 9 , 18 , 959 , 2777 , 776 , 41014 , 2318 , 781034 , 986884 , 4037530 , 4891853 , 89430202 , 77239539 , 597390991 , 326588741 , 9191004039 , 6224446142
n×2
40379794
n×3
60569691
n×4
80759588
n×5
100949485
n÷2
10094948.5
n÷3
6729965.6666667
n÷3
5047474.25
n÷5
4037979.4
n2
407631940870609
n3
8.2300469000877E+21
n4
1.6616379921794E+29
n5
3.3548299913389E+36
2 √n
4493.3169262806
3 √n
272.29815650814
4 √n
67.032208126248
5 √n
28.908584072596
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20189896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20189897 can be divided by 8 positive divisors.
The sum of these divisors (counting 20189897) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000001001011001001
3
Ternary
1101222202022222
4
Quaternary
1031001023021
5
Quinary
20132034042
6
Senary
2000423425
8
Octal
115011311
10
Decimal
20189897
12
Duodecimal
6917b75
16
Hexadecimal
13412c9
20
Vigesimal
663eeh
36
Base36
c0qmh
md5
16b5d26a644c424de2fa44eba671bc5b
sha1
f4624af1f644622b334800a0b1584aee9e08a2b8
sha256
f25164129649053e5f1a9aced696ce7799e07d5f73199ae388064338b7f01534
sha512
1408e9b75ca3c12da28fa4c5761dac55e3f9e2ae0d104ab349f8a3682b1e65190feed9445a06a5dc55cd8dec9384f2e3c6dd4a15f7d9594634031b7f767c0f39
ripemd-160
f54f0518d32f4faa7b52ac4da8fcb322834f810e
Diameter
40379794
Circumference
126856864.18387
Area
1.2806135108077E+15
Volume
3.447393984002E+22
Surface area
5.1224540432306E+15
Circumference
126856864.18387
Perimeter
80759588
Area
407631940870609
Diagonal
28552826.160316
Surface area
2445791645223654
Volume
8.2300469000877E+21
Space diagonal
34969927.403582
Perimeter
60569691
Area
1.7650980809395E+14
Altitude
17484963.701791
Surface area
1.7650980809395E+14
Volume
9.6992032875589E+20
Height
9517608.7201053