20191091 is an odd 8-digits composite number following 20191090
and preceding 20191092 . In scientific notation, it is written as 2.0191091 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19128060 positive integers (up to 20191091) that are relatively prime to 20191091.
20191091 has 4 divisors, whose sum is 20247384
The reverse of 20191091 is 19019102
Previous prime number is 361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred ninety-one thousand ninety-one
Scientific notation
2.0191091 × 10^7
Engineering notation
2.0191091 × 10^6
Prime Factorization
361 × 55931
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20191091
Product of the distinct prime numbers
The prime factorization of 20191091 is 361 × 55931.
Since it has a total of 2 prime factors.
4 , 8 , 71 , 27 , 275 , 153 , 4354 , 6796 , 85580 , 96838 , 254850 , 853171 , 7186586 , 9882360 , 96072305 , 16515564 , 990458085 , 590642804 , 4042676468 , 8476372377
n×2
40382182
n×3
60573273
n×4
80764364
n×5
100955455
n÷2
10095545.5
n÷3
6730363.6666667
n÷3
5047772.75
n÷5
4038218.2
n2
407680155770281
n3
8.2315071240519E+21
n4
1.6620310940888E+29
n5
3.3558221065577E+36
2 √n
4493.449788303
3 √n
272.3035241695
4 √n
67.033199150145
5 √n
28.908925986504
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191090
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191091 can be divided by 4 positive divisors.
The sum of these divisors (counting 20191091) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001011101110011
3
Ternary
1101222210222012
4
Quaternary
1031001131303
5
Quinary
20132103331
6
Senary
2000433135
8
Octal
115013563
10
Decimal
20191091
12
Duodecimal
69187ab
16
Hexadecimal
1341773
20
Vigesimal
663heb
36
Base36
c0rjn
md5
8e53e76e27b1023b64b9683572a0b5fd
sha1
c02f6a6e498a4117ca3a0b2276b3b3a8727c1a7c
sha256
b04a1286a6a37a700b94cff08c67878d6ffc85bf93848ad4a84cd15b74bb2812
sha512
ed0f9708090eea655ed037a0aa1ca3f846b4370909235b4709f0ce45087d7bd3c6f46be160506f04c59c4e9ae9963d8f87c2c06e9bc8aaa4173233f940765e82
ripemd-160
4c7c315782f070ddc1e8e0e63d298dac009ab085
Diameter
40382182
Circumference
126864366.30713
Area
1.2807649823823E+15
Volume
3.4480056411858E+22
Surface area
5.123059929529E+15
Circumference
126864366.30713
Perimeter
80764364
Area
407680155770281
Diagonal
28554514.731309
Surface area
2446080934621686
Volume
8.2315071240519E+21
Space diagonal
34971995.472247
Perimeter
60573273
Area
1.7653068575793E+14
Altitude
17485997.736123
Surface area
1.7653068575793E+14
Volume
9.7009241780041E+20
Height
9518171.5771031