20973891 is an odd 8-digits composite number following 20973890
and preceding 20973892 . In scientific notation, it is written as 2.0973891 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 12963168 positive integers (up to 20973891) that are relatively prime to 20973891.
20973891 has 16 divisors, whose sum is 30067200
The reverse of 20973891 is 19837902
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred seventy-three thousand eight hundred ninety-one
Scientific notation
2.0973891 × 10^7
Engineering notation
2.0973891 × 10^6
Prime Factorization
3 × 19 × 47 × 7829
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20973891
Product of the distinct prime numbers
The prime factorization of 20973891 is 3 × 19 × 47 × 7829.
Since it has a total of 4 prime factors.
1 , 3 , 13 , 96 , 771 , 862 , 6657 , 9447 , 23515 , 576 , 871012 , 983890 , 2726894 , 8695696 , 87625891 , 42341596 , 914031318 , 976610547 , 8766142191 , 3053967814
n×2
41947782
n×3
62921673
n×4
83895564
n×5
104869455
n÷2
10486945.5
n÷3
6991297
n÷3
5243472.75
n÷5
4194778.2
n2
439904103679881
n3
9.2265007210345E+21
n4
1.935156204344E+29
n5
4.0587755297885E+36
2 √n
4579.726083512
3 √n
275.77803252004
4 √n
67.67367348912
5 √n
29.129685873071
1 , 3 , 19 , 47 , 57 , 141 , 893 , 2679 , 7829 , 23487 , 148751 , 367963 , 446253 , 1103889 , 6991297 , 20973891
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
-20973890
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 20973891 can be divided by 16 positive divisors.
The sum of these divisors (counting 20973891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000000100101000011
3
Ternary
1110110120202210
4
Quaternary
1100000211003
5
Quinary
20332131031
6
Senary
2025313203
8
Octal
120004503
10
Decimal
20973891
12
Duodecimal
7035803
16
Hexadecimal
1400943
20
Vigesimal
6b1eeb
36
Base36
chjk3
md5
50ba5602864db0c0b602cb5be056a946
sha1
0602e7964b11290abb69f0eac1357d7a77d1c1d1
sha256
f3e53123a5d97f25dc8850f15b6dcfce782164ab0d615e092af934d548b23e77
sha512
7cee447214b810e211f7aeebea06137d251e67b0fbd12a91cb1e410f777d29e5b3a64bcf604697017a4a431a0c043deb6f174e87097cace32b7cdd5da43e8b6e
ripemd-160
dbc799cef7279a467445431e5c26c15e625ccbcc
Diameter
41947782
Circumference
131782843.76559
Area
1.3819995004047E+15
Volume
3.8647875844724E+22
Surface area
5.5279980016189E+15
Circumference
131782843.76559
Perimeter
83895564
Area
439904103679881
Diagonal
29661561.107935
Surface area
2639424622079286
Volume
9.2265007210345E+21
Space diagonal
36327844.844412
Perimeter
62921673
Area
1.904840645079E+14
Altitude
18163922.422206
Surface area
1.904840645079E+14
Volume
1.0873535377443E+21
Height
9887187.0359783