20091031 is an odd 8-digits composite number following 20091030
and preceding 20091032 . In scientific notation, it is written as 2.0091031 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 20038192 positive integers (up to 20091031) that are relatively prime to 20091031.
20091031 has 4 divisors, whose sum is 20143872
The reverse of 20091031 is 13019002
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million ninety-one thousand thirty-one
Scientific notation
2.0091031 × 10^7
Engineering notation
2.0091031 × 10^6
Prime Factorization
383 × 52457
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20091031
Product of the distinct prime numbers
The prime factorization of 20091031 is 383 × 52457.
Since it has a total of 2 prime factors.
4 , 4 , 27 , 10 , 468 , 416 , 5372 , 7702 , 57720 , 19792 , 428966 , 686622 , 2235672 , 511988 , 3894575 , 60201346 , 293568892 , 554629018 , 3141341119 , 1692905054
n×2
40182062
n×3
60273093
n×4
80364124
n×5
100455155
n÷2
10045515.5
n÷3
6697010.3333333
n÷3
5022757.75
n÷5
4018206.2
n2
403649526642961
n3
8.1097351529191E+21
n4
1.6293294035909E+29
n5
3.2734907556756E+36
2 √n
4482.3019755478
3 √n
271.85296533447
4 √n
66.949996083255
5 √n
28.880216510795
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
-20091030
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 20091031 can be divided by 4 positive divisors.
The sum of these divisors (counting 20091031) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100101001000010010111
3
Ternary
1101210201201021
4
Quaternary
1030221002113
5
Quinary
20120403111
6
Senary
1554342011
8
Octal
114510227
10
Decimal
20091031
12
Duodecimal
688a907
16
Hexadecimal
1329097
20
Vigesimal
65b7bb
36
Base36
bymc7
md5
8db0c5f3caeba2baee2499959194c23a
sha1
2ab82e5adc4cf97a0b491516ac40cae5ec1e7931
sha256
02b0e35840a995f07e4845d621e10a969682d762862ed224a8589ad04a9024ba
sha512
eacae1ce967618d09706e22dc55c98301a88ba874791adac5e38f7ef39be6d795134aa1f679d318f09794abbf3e0b39b028b8866277e3cca859e7989a4042376
ripemd-160
54c953cabae7bf80e3211ca0d869c819cb777023
Diameter
40182062
Circumference
126235670.78529
Area
1.2681023875265E+15
Volume
3.3969979171959E+22
Surface area
5.0724095501061E+15
Circumference
126235670.78529
Perimeter
80364124
Area
403649526642961
Diagonal
28413008.522258
Surface area
2421897159857766
Volume
8.1097351529191E+21
Space diagonal
34798686.468441
Perimeter
60273093
Area
1.7478537214918E+14
Altitude
17399343.234221
Surface area
1.7478537214918E+14
Volume
9.55741453376E+20
Height
9471002.8407528