20989191 is an odd 8-digits composite number following 20989190
and preceding 20989192 . In scientific notation, it is written as 2.0989191 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 13755512 positive integers (up to 20989191) that are relatively prime to 20989191.
20989191 has 8 divisors, whose sum is 28460160
The reverse of 20989191 is 19198902
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred eighty-nine thousand one hundred ninety-one
Scientific notation
2.0989191 × 10^7
Engineering notation
2.0989191 × 10^6
Prime Factorization
3 × 59 × 118583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20989191
Product of the distinct prime numbers
The prime factorization of 20989191 is 3 × 59 × 118583.
Since it has a total of 3 prime factors.
6 , 7 , 18 , 34 , 561 , 586 , 7822 , 4583 , 69505 , 42795 , 469665 , 255845 , 1603103 , 2636175 , 91859655 , 48394699 , 255129453 , 38641642 , 4422033804 , 5693567648
n×2
41978382
n×3
62967573
n×4
83956764
n×5
104945955
n÷2
10494595.5
n÷3
6996397
n÷3
5247297.75
n÷5
4197838.2
n2
440546138834481
n3
9.2467070523094E+21
n4
1.9408090044197E+29
n5
4.0736010888285E+36
2 √n
4581.3961845708
3 √n
275.84507425819
4 √n
67.686011734854
5 √n
29.133934528735
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
-20989190
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 20989191 can be divided by 8 positive divisors.
The sum of these divisors (counting 20989191) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000100010100000111
3
Ternary
1110111100202110
4
Quaternary
1100010110013
5
Quinary
20333123231
6
Senary
2025512103
8
Octal
120042407
10
Decimal
20989191
12
Duodecimal
7042633
16
Hexadecimal
1404507
20
Vigesimal
6b3cjb
36
Base36
chvd3
md5
d16ed48dda92262d079029e5cfe3b861
sha1
7e894bd4c96e65d529851603181a0036d7ed2e3b
sha256
3c0b2bdcfe6fb2e238b7df7e6cfcabe825dc4471a92f7e689d637aef913ab14b
sha512
695dcbbf8ad152b98a2fca48c53192b9edd1d05113ba95b6f1c9c639fed3c5fd48d4bc6f1c18d9a1ec2f5e2929ecb34458ffca2064e88ee2e0a853d21ee42aef
ripemd-160
20ff9b4c3e40c666b8dc8a1ae53f2e2130ac4e85
Diameter
41978382
Circumference
131878976.50079
Area
1.3840165133298E+15
Volume
3.8732515927243E+22
Surface area
5.536066053319E+15
Circumference
131878976.50079
Perimeter
83956764
Area
440546138834481
Diagonal
29683198.575439
Surface area
2643276833006886
Volume
9.2467070523094E+21
Space diagonal
36354345.221767
Perimeter
62967573
Area
1.907620738849E+14
Altitude
18177172.610884
Surface area
1.907620738849E+14
Volume
1.0897348767222E+21
Height
9894399.5251464