20182991 is an odd 8-digits composite number following 20182990
and preceding 20182992 . In scientific notation, it is written as 2.0182991 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20172072 positive integers (up to 20182991) that are relatively prime to 20182991.
20182991 has 4 divisors, whose sum is 20193912
The reverse of 20182991 is 19928102
Previous prime number is 8563
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred eighty-two thousand nine hundred ninety-one
Scientific notation
2.0182991 × 10^7
Engineering notation
2.0182991 × 10^6
Prime Factorization
8563 × 2357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20182991
Product of the distinct prime numbers
The prime factorization of 20182991 is 8563 × 2357.
Since it has a total of 2 prime factors.
8 , 10 , 59 , 83 , 811 , 858 , 1386 , 4256 , 22279 , 89109 , 911569 , 754399 , 9605317 , 8438663 , 55862279 , 65719828 , 693749821 , 841376287 , 9846539535 , 5301041581
n×2
40365982
n×3
60548973
n×4
80731964
n×5
100914955
n÷2
10091495.5
n÷3
6727663.6666667
n÷3
5045747.75
n÷5
4036598.2
n2
407353125706081
n3
8.2216044699477E+21
n4
1.6593656902251E+29
n5
3.3490962791523E+36
2 √n
4492.5483859387
3 √n
272.26710623387
4 √n
67.026475261188
5 √n
28.906606152625
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
-20182990
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 20182991 can be divided by 4 positive divisors.
The sum of these divisors (counting 20182991) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111111011111001111
3
Ternary
1101222101212012
4
Quaternary
1030333133033
5
Quinary
20131323431
6
Senary
2000331435
8
Octal
114773717
10
Decimal
20182991
12
Duodecimal
6913b7b
16
Hexadecimal
133f7cf
20
Vigesimal
662h9b
36
Base36
c0lan
md5
b085b73f457c10d8f88070bb6577a5b5
sha1
1d8bc505971b8532c0992487bc1d82ddfbee8c1e
sha256
54dbcfcfef90a518435470f0cb9de88e7849bd11862e9b759eda43c64aedc1df
sha512
964287c933e3254a73584069ab68e04c752f6aaf669fe2685e7c13c07eda83468f9f46680d997328bed545af49b400204bd451d916d95558746272a9218f7727
ripemd-160
7ae7b70f84907037c9551c52f214bd54e57deaef
Diameter
40365982
Circumference
126813472.50614
Area
1.2797375871351E+15
Volume
3.4438576271345E+22
Surface area
5.1189503485403E+15
Circumference
126813472.50614
Perimeter
80731964
Area
407353125706081
Diagonal
28543059.601454
Surface area
2444118754236486
Volume
8.2216044699477E+21
Space diagonal
34957965.860705
Perimeter
60548973
Area
1.7638907758623E+14
Altitude
17478982.930353
Surface area
1.7638907758623E+14
Volume
9.6892537882228E+20
Height
9514353.2004847