20091381 is an odd 8-digits composite number following 20091380
and preceding 20091382 . In scientific notation, it is written as 2.0091381 × 10^7.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 13394252 positive integers (up to 20091381) that are relatively prime to 20091381.
20091381 has 4 divisors, whose sum is 26788512
The reverse of 20091381 is 18319002
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million ninety-one thousand three hundred eighty-one
Scientific notation
2.0091381 × 10^7
Engineering notation
2.0091381 × 10^6
Prime Factorization
3 × 6697127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20091381
Product of the distinct prime numbers
The prime factorization of 20091381 is 3 × 6697127.
Since it has a total of 2 prime factors.
4 , 9 , 40 , 85 , 151 , 543 , 9066 , 7786 , 721 , 25197 , 602257 , 604865 , 7192715 , 7714964 , 9487148 , 42892925 , 669635476 , 886957821 , 5993870378 , 3372526501
n×2
40182762
n×3
60274143
n×4
80365524
n×5
100456905
n÷2
10045690.5
n÷3
6697127
n÷3
5022845.25
n÷5
4018276.2
n2
403663590487161
n3
8.1101589923055E+21
n4
1.6294429428499E+29
n5
3.2737758982558E+36
2 √n
4482.3410178165
3 √n
271.85454394909
4 √n
66.950287660446
5 √n
28.880317132862
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
-20091380
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 20091381 can be divided by 4 positive divisors.
The sum of these divisors (counting 20091381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101001000111110101
3
Ternary
1101210202012020
4
Quaternary
1030221013311
5
Quinary
20120411011
6
Senary
1554343353
8
Octal
114510765
10
Decimal
20091381
12
Duodecimal
688ab59
16
Hexadecimal
13291f5
20
Vigesimal
65b891
36
Base36
bymlx
md5
931c2a456d602eecddff39ecfa3cb9fb
sha1
385eb2cc5aa65e2d54bceb9d6dfec90b49a14675
sha256
96b0e3ecafdc74fa83e432aabf5a1ba380f6b618cfd9b9dfc8874defeb43e099
sha512
d03044f249024446ca4b2d88878fb1babf2a8591cc76e1b821a176b6bff4fea9e3efc66b9950a077edba2f7fdde76b50f81f8f036a19f4f08170ee91b427a066
ripemd-160
531c421ba0e6590fc2f47b472de040b815789df7
Diameter
40182762
Circumference
126237869.90015
Area
1.2681465703961E+15
Volume
3.397175454623E+22
Surface area
5.0725862815846E+15
Circumference
126237869.90015
Perimeter
80365524
Area
403663590487161
Diagonal
28413503.497005
Surface area
2421981542922966
Volume
8.1101589923055E+21
Space diagonal
34799292.686224
Perimeter
60274143
Area
1.7479146197236E+14
Altitude
17399646.343112
Surface area
1.7479146197236E+14
Volume
9.5579140332672E+20
Height
9471167.832335