20971538 is an even 8-digits composite number following 20971537
and preceding 20971539 . In scientific notation, it is written as 2.0971538 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 8596896 positive integers (up to 20971538) that are relatively prime to 20971538.
20971538 has 16 divisors, whose sum is 37514880
The reverse of 20971538 is 83517902
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred seventy-one thousand five hundred thirty-eight
Scientific notation
2.0971538 × 10^7
Engineering notation
2.0971538 × 10^6
Prime Factorization
2 × 7 × 23 × 65129
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20971538
Product of the distinct prime numbers
The prime factorization of 20971538 is 2 × 7 × 23 × 65129.
Since it has a total of 4 prime factors.
10 , 1 , 88 , 87 , 114 , 883 , 2569 , 4495 , 13159 , 68498 , 699590 , 212944 , 1671529 , 9285747 , 80642955 , 98474734 , 242616801 , 996368684 , 3689857054 , 8200460533
n×2
41943076
n×3
62914614
n×4
83886152
n×5
104857690
n÷2
10485769
n÷3
6990512.6666667
n÷3
5242884.5
n÷5
4194307.6
n2
439805406085444
n3
9.2233957863263E+21
n4
1.9342879522198E+29
n5
4.056499329292E+36
2 √n
4579.4691832133
3 √n
275.76771922181
4 √n
67.671775380976
5 √n
29.129032248745
1 , 2 , 7 , 14 , 23 , 46 , 161 , 322 , 65129 , 130258 , 455903 , 911806 , 1497967 , 2995934 , 10485769 , 20971538
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20971537
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20971538 can be divided by 16 positive divisors.
The sum of these divisors (counting 20971538) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000000000000010010
3
Ternary
1110110110112122
4
Quaternary
1100000000102
5
Quinary
20332042123
6
Senary
2025254242
8
Octal
120000022
10
Decimal
20971538
12
Duodecimal
7034382
16
Hexadecimal
1400012
20
Vigesimal
6b18gi
36
Base36
chhqq
md5
6cec5a8ccfe156f76489e24be612a63e
sha1
c2aff84e995c98cab58aeb87b0c0cabf79c57f02
sha256
a187e7f9acc11a88ffeb3704519e95ed4fef757c6618cac7033e11ff6444d36c
sha512
ccd18485d67b951d27b3cdb9a5a6c94c616c4b54d8405b6c102bda20fa8cb52b84d8538df787b14ade2efb13ac237fcc47d7dba499479fb10a6f370e15b27bff
ripemd-160
ee6e0e6c4d25ad0ec95009148bcf168f92666bde
Diameter
41943076
Circumference
131768059.43056
Area
1.3816894327671E+15
Volume
3.8634869924632E+22
Surface area
5.5267577310684E+15
Circumference
131768059.43056
Perimeter
83886152
Area
439805406085444
Diagonal
29658233.463423
Surface area
2638832436512664
Volume
9.2233957863263E+21
Space diagonal
36323769.328861
Perimeter
62914614
Area
1.9044132719586E+14
Altitude
18161884.664431
Surface area
1.9044132719586E+14
Volume
1.0869876176798E+21
Height
9886077.8211409