20807870 is an even 8-digits composite number following 20807869
and preceding 20807871 . In scientific notation, it is written as 2.0807870 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 7961184 positive integers (up to 20807870) that are relatively prime to 20807870.
20807870 has 16 divisors, whose sum is 39083040
The reverse of 20807870 is 07870802
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million eight hundred seven thousand eight hundred seventy
Scientific notation
2.0807870 × 10^7
Engineering notation
2.0807870 × 10^6
Prime Factorization
2 × 5 × 23 × 90469
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20807870
Product of the distinct prime numbers
The prime factorization of 20807870 is 2 × 5 × 23 × 90469.
Since it has a total of 4 prime factors.
10 , 3 , 77 , 21 , 242 , 840 , 6529 , 6084 , 47382 , 41968 , 711107 , 128478 , 8157928 , 365203 , 96611222 , 92372977 , 901465272 , 579916287 , 9435315514 , 7917104548
n×2
41615740
n×3
62423610
n×4
83231480
n×5
104039350
n÷2
10403935
n÷3
6935956.6666667
n÷3
5201967.5
n÷5
4161574
n2
432967453936900
n3
9.00913049575E+21
n4
1.874608161686E+29
n5
3.9006602929302E+36
2 √n
4561.5644246245
3 √n
275.0484542719
4 √n
67.539354635831
5 √n
29.08342335466
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 90469 , 180938 , 452345 , 904690 , 2080787 , 4161574 , 10403935 , 20807870
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
-20807869
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 20807870 can be divided by 16 positive divisors.
The sum of these divisors (counting 20807870) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111011000000010111110
3
Ternary
1110011011000212
4
Quaternary
1033120002332
5
Quinary
20311322440
6
Senary
2021552422
8
Octal
117300276
10
Decimal
20807870
12
Duodecimal
6b75712
16
Hexadecimal
13d80be
20
Vigesimal
6a0jda
36
Base36
cdzge
md5
99089ef73ca17f4bb18233caf9366912
sha1
5b3589bd7d58d04f9c551aed3768a219406bde8f
sha256
433298bbfa6faa658d5222cea799905175780d56acdd91a1f4ec3c24f8b66fdb
sha512
afb4a006b54fc4419672660eb28694c7cfb30690e1ac9c0dcd60245cc2e0a059dfdba381e67a5f1f8b720b747b4818ed73094133d2ba265646ad772af77ec20e
ripemd-160
da92469dffc36862ef41fd036a18526f48c81d2b
Diameter
41615740
Circumference
130739703.0577
Area
1.3602073725316E+15
Volume
3.773735757424E+22
Surface area
5.4408294901266E+15
Circumference
130739703.0577
Perimeter
83231480
Area
432967453936900
Diagonal
29426771.958096
Surface area
2597804723621400
Volume
9.00913049575E+21
Space diagonal
36040288.037288
Perimeter
62423610
Area
1.8748040706061E+14
Altitude
18020144.018644
Surface area
1.8748040706061E+14
Volume
1.0617362110232E+21
Height
9808923.9860321