20807761 is an odd 8-digits composite number following 20807760
and preceding 20807762 . In scientific notation, it is written as 2.0807761 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18321408 positive integers (up to 20807761) that are relatively prime to 20807761.
20807761 has 8 divisors, whose sum is 21580200
The reverse of 20807761 is 16770802
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred seven thousand seven hundred sixty-one
Scientific notation
2.0807761 × 10^7
Engineering notation
2.0807761 × 10^6
Prime Factorization
1261 × 29 × 569
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20807761
Product of the distinct prime numbers
The prime factorization of 20807761 is 1261 × 29 × 569.
Since it has a total of 3 prime factors.
5 , 10 , 74 , 8 , 435 , 731 , 7166 , 5244 , 6726 , 6936 , 870788 , 413407 , 8428599 , 243162 , 60974899 , 89467517 , 309228120 , 388585245 , 3262242355 , 9907128578
n×2
41615522
n×3
62423283
n×4
83231044
n×5
104038805
n÷2
10403880.5
n÷3
6935920.3333333
n÷3
5201940.25
n÷5
4161552.2
n2
432962917833121
n3
9.0089889161342E+21
n4
1.8745688821857E+29
n5
3.9005581278557E+36
2 √n
4561.5524769534
3 √n
275.04797399955
4 √n
67.539266186075
5 √n
29.08339288446
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20807760
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20807761 can be divided by 8 positive divisors.
The sum of these divisors (counting 20807761) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111011000000001010001
3
Ternary
1110011010212211
4
Quaternary
1033120001101
5
Quinary
20311322021
6
Senary
2021552121
8
Octal
117300121
10
Decimal
20807761
12
Duodecimal
6b75641
16
Hexadecimal
13d8051
20
Vigesimal
6a0j81
36
Base36
cdzdd
md5
f92192a22280682960e86288798e539c
sha1
2f2d77b98419ac3c1fe178280862d6c5cf4dd64c
sha256
01cef37f29076eea54f96e318bf7997d23f78ba03de2f5a345442150ab54fe6c
sha512
0f52ddc334e8fb50269d3c24b0597fa9b175043038fa72d14d258f94778a392abfe3c55b5a647fa3b4f7055815b43af0c1e3979e59cdaf53e2fc686fb984bd7f
ripemd-160
e726a75ed713e268ca476125ec6c77f9fbd353f9
Diameter
41615522
Circumference
130739018.1905
Area
1.3601931219413E+15
Volume
3.7736764526932E+22
Surface area
5.4407724877653E+15
Circumference
130739018.1905
Perimeter
83231044
Area
432962917833121
Diagonal
29426617.808818
Surface area
2597777506998726
Volume
9.0089889161342E+21
Space diagonal
36040099.24375
Perimeter
62423283
Area
1.8747844287006E+14
Altitude
18020049.621875
Surface area
1.8747844287006E+14
Volume
1.0617195257055E+21
Height
9808872.6029393