20731381 is an odd 8-digits composite number following 20731380
and preceding 20731382 . In scientific notation, it is written as 2.0731381 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 17737920 positive integers (up to 20731381) that are relatively prime to 20731381.
20731381 has 8 divisors, whose sum is 23946624
The reverse of 20731381 is 18313702
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million seven hundred thirty-one thousand three hundred eighty-one
Scientific notation
2.0731381 × 10^7
Engineering notation
2.0731381 × 10^6
Prime Factorization
11 × 17 × 110863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20731381
Product of the distinct prime numbers
The prime factorization of 20731381 is 11 × 17 × 110863.
Since it has a total of 3 prime factors.
1 , 2 , 9 , 26 , 850 , 669 , 7123 , 2595 , 68658 , 6971 , 592932 , 579493 , 6686503 , 5222872 , 2421099 , 94507532 , 581299190 , 730284939 , 4791381290 , 1612212066
n×2
41462762
n×3
62194143
n×4
82925524
n×5
103656905
n÷2
10365690.5
n÷3
6910460.3333333
n÷3
5182845.25
n÷5
4146276.2
n2
429790158167161
n3
8.9101435190137E+21
n4
1.8471958005735E+29
n5
3.829491992329E+36
2 √n
4553.1726301558
3 √n
274.71101764285
4 √n
67.47720081743
5 √n
29.0620099167
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
-20731380
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 20731381 can be divided by 8 positive divisors.
The sum of these divisors (counting 20731381) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111000101010111110101
3
Ternary
1110000021002221
4
Quaternary
1033011113311
5
Quinary
20301401011
6
Senary
2020202341
8
Octal
117052765
10
Decimal
20731381
12
Duodecimal
6b393b1
16
Hexadecimal
13c55f5
20
Vigesimal
69b891
36
Base36
cccfp
md5
e37aa1ea3e97edff283e9c087b3c932e
sha1
6545c377c1878796fbf91debfbc4face2cff244c
sha256
b227018592bb21306767aed07f861390aef93dd5aa55ddba1164ff2114742c9e
sha512
22d7c29b043a70f025c234a1bcf0d41bfdbfc15167cfcfd7dd7ef86413beddb2a1e8f00f592d2313c8812eb593f1869da85c58f8e7c23049ec8ee5a83d49448d
ripemd-160
827f6cf206f1812629890e3a015cdd0b780f6cc8
Diameter
41462762
Circumference
130259108.49674
Area
1.3502256034831E+15
Volume
3.7322721895685E+22
Surface area
5.4009024139326E+15
Circumference
130259108.49674
Perimeter
82925524
Area
429790158167161
Diagonal
29318600.176924
Surface area
2578740949002966
Volume
8.9101435190137E+21
Space diagonal
35907805.203068
Perimeter
62194143
Area
1.8610459763465E+14
Altitude
17953902.601534
Surface area
1.8610459763465E+14
Volume
1.05007048394E+21
Height
9772866.7256413