20291491 is an odd 8-digits composite number following 20291490
and preceding 20291492 . In scientific notation, it is written as 2.0291491 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 18446800 positive integers (up to 20291491) that are relatively prime to 20291491.
20291491 has 4 divisors, whose sum is 22136184
The reverse of 20291491 is 19419202
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million two hundred ninety-one thousand four hundred ninety-one
Scientific notation
2.0291491 × 10^7
Engineering notation
2.0291491 × 10^6
Prime Factorization
11 × 1844681
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20291491
Product of the distinct prime numbers
The prime factorization of 20291491 is 11 × 1844681.
Since it has a total of 2 prime factors.
4 , 7 , 85 , 54 , 148 , 710 , 6023 , 7221 , 33598 , 17283 , 239498 , 859315 , 4228919 , 5631970 , 76551513 , 12813302 , 489780810 , 971054786 , 841287765 , 6263098731
n×2
40582982
n×3
60874473
n×4
81165964
n×5
101457455
n÷2
10145745.5
n÷3
6763830.3333333
n÷3
5072872.75
n÷5
4058298.2
n2
411744607003081
n3
8.3549119873016E+21
n4
1.6953362139612E+29
n5
3.4400899527568E+36
2 √n
4504.607752069
3 √n
272.75412032333
4 √n
67.116374694027
5 √n
28.937618842766
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
-20291490
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 20291491 can be divided by 4 positive divisors.
The sum of these divisors (counting 20291491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101011001111110100011
3
Ternary
1102011220200201
4
Quaternary
1031121332203
5
Quinary
20143311431
6
Senary
2002530031
8
Octal
115317643
10
Decimal
20291491
12
Duodecimal
6966917
16
Hexadecimal
1359fa3
20
Vigesimal
66g8eb
36
Base36
c2x0j
md5
75feeef83861b90fc92a1dac89a3ad3a
sha1
dc5909962b3f0a7ae7ba1bb647f8a14487697c6a
sha256
8086dd9cab555c456938bfbeea029cffdcc59a74e270c623d8fd76976a10a69d
sha512
59e937f6d27344ad6cb1e4af552db80548bc8cbf4036eb484f53ad52d17ac776bed92dbcdcd834200407e85f79c44531cb5882d2d37087c5ad92f220d95a9df0
ripemd-160
cf51155f0d7b8c3269ca636e317e4ac3f3d8e18c
Diameter
40582982
Circumference
127495198.11197
Area
1.2935338325161E+15
Volume
3.4996973494261E+22
Surface area
5.1741353300644E+15
Circumference
127495198.11197
Perimeter
81165964
Area
411744607003081
Diagonal
28696501.772972
Surface area
2470467642018486
Volume
8.3549119873016E+21
Space diagonal
35145893.373327
Perimeter
60874473
Area
1.7829064476795E+14
Altitude
17572946.686663
Surface area
1.7829064476795E+14
Volume
9.8463582040628E+20
Height
9565500.5909905