20971982 is an even 8-digits composite number following 20971981
and preceding 20971983 . In scientific notation, it is written as 2.0971982 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 9765888 positive integers (up to 20971982) that are relatively prime to 20971982.
20971982 has 16 divisors, whose sum is 33657120
The reverse of 20971982 is 28917902
Previous prime number is 97
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred seventy-one thousand nine hundred eighty-two
Scientific notation
2.0971982 × 10^7
Engineering notation
2.0971982 × 10^6
Prime Factorization
2 × 17 × 97 × 6359
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20971982
Product of the distinct prime numbers
The prime factorization of 20971982 is 2 × 17 × 97 × 6359.
Since it has a total of 4 prime factors.
3 , 1 , 43 , 61 , 677 , 416 , 3368 , 9404 , 73262 , 11749 , 215234 , 160939 , 1404051 , 7969347 , 84384382 , 85090496 , 39559392 , 298935238 , 2405505924 , 5324750889
n×2
41943964
n×3
62915946
n×4
83887928
n×5
104859910
n÷2
10485991
n÷3
6990660.6666667
n÷3
5242995.5
n÷5
4194396.4
n2
439824029008324
n3
9.22398161953E+21
n4
1.9344517649312E+29
n5
4.0569287594004E+36
2 √n
4579.5176601909
3 √n
275.76966535158
4 √n
67.672133557254
5 √n
29.129155589062
1 , 2 , 17 , 34 , 97 , 194 , 1649 , 3298 , 6359 , 12718 , 108103 , 216206 , 616823 , 1233646 , 10485991 , 20971982
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
-20971981
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 20971982 can be divided by 16 positive divisors.
The sum of these divisors (counting 20971982) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000000000111001110
3
Ternary
1110110111011002
4
Quaternary
1100000013032
5
Quinary
20332100412
6
Senary
2025300302
8
Octal
120000716
10
Decimal
20971982
12
Duodecimal
7034692
16
Hexadecimal
14001ce
20
Vigesimal
6b19j2
36
Base36
chi32
md5
662ecf90e7b55b475502cb38f4743149
sha1
46ec9900f4eae46a317cfb234f195d7fe7ccb49c
sha256
d14be7be5a34b551db135d6b9005577c775ad1c0a9cc4abda585e159bcc17a3b
sha512
3e971406de9b96206310e3bf8dbc44c6d4a0a8ca8005e8ab4915ffafbab178a5e7e268181b451dfc5a2940558c01ee8ad5274f650f97807931a062591270ba04
ripemd-160
f19dd7e65be03e890321ca379bb2970019d481c6
Diameter
41943964
Circumference
131770849.16483
Area
1.3817479384048E+15
Volume
3.8637323857017E+22
Surface area
5.5269917536193E+15
Circumference
131770849.16483
Perimeter
83887928
Area
439824029008324
Diagonal
29658861.374244
Surface area
2638944174049944
Volume
9.22398161953E+21
Space diagonal
36324538.35942
Perimeter
62915946
Area
1.9044939115802E+14
Altitude
18162269.17971
Surface area
1.9044939115802E+14
Volume
1.087056658785E+21
Height
9886287.1247481