189908021 is an odd 9-digits composite number following 189908020
and preceding 189908022 . In scientific notation, it is written as 1.89908021 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 177608808 positive integers (up to 189908021) that are relatively prime to 189908021.
189908021 has 12 divisors, whose sum is 202996800
The reverse of 189908021 is 120809981
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred eighty-nine million nine hundred eight thousand twenty-one
Scientific notation
1.89908021 × 10^8
Engineering notation
1.89908021 × 10^6
Prime Factorization
19 × 19 × 79 × 6659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9995159
Product of the distinct prime numbers
The prime factorization of 189908021 is 19 × 19 × 79 × 6659.
Since it has a total of 4 prime factors.
6 , 10 , 30 , 92 , 915 , 56 , 6510 , 9298 , 71324 , 80781 , 566333 , 20767 , 5253310 , 4067011 , 44532724 , 24374517 , 202639586 , 576222810 , 5698890182 , 7443083868
n×2
379816042
n×3
569724063
n×4
759632084
n×5
949540105
n÷2
94954010.5
n÷3
63302673.666667
n÷3
47477005.25
n÷5
37981604.2
n2
36065056440136441
n3
6.8490434957996E+24
n4
1.3006882960302E+33
n5
2.4701114023696E+41
2 √n
13780.711919201
3 √n
574.79692488492
4 √n
117.39127701495
5 √n
45.25938638613
1 , 19 , 79 , 361 , 1501 , 6659 , 28519 , 126521 , 526061 , 2403899 , 9995159 , 189908021
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-189908020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 189908021 can be divided by 12 positive divisors.
The sum of these divisors (counting 189908021) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1011010100011100010000110101
3
Ternary
111020100022211102
4
Quaternary
23110130100311
5
Quinary
342104024041
6
Senary
30502215445
8
Octal
1324342065
10
Decimal
189908021
12
Duodecimal
53724585
16
Hexadecimal
b51c435
20
Vigesimal
2j6ia11
36
Base36
352dyt
md5
d59849332d215669b7f9ede388f97c0e
sha1
367d5942ce855cc619f6514905ccdc3f5cc28c3e
sha256
eaef63d64132e121beeefbf27835a75c9189b8314795005bb360bb65e8e90edc
sha512
b777f3f3909d76ce7a61696da8a8058d80629f5f6df944afcfe2849db12dd27133a919ccb4d6f71cf4a481f043243f6bf6058817c45993e5f96f41a40d15b32d
ripemd-160
d858c554f4547fe2c869dd86224e53b3dfc35f89
Diameter
379816042
Circumference
1193227287.2628
Area
1.1330171636363E+17
Volume
2.8689206307361E+25
Surface area
4.5320686545454E+17
Circumference
1193227287.2628
Perimeter
759632084
Area
36065056440136441
Diagonal
268570498.90163
Surface area
216390338640818646
Volume
6.8490434957996E+24
Space diagonal
328930341.13686
Perimeter
569724063
Area
1.5616627533039E+16
Altitude
164465170.56843
Surface area
1.5616627533039E+16
Volume
8.0716751675359E+23
Height
89523499.633878