20702987 is an odd 8-digits prime number following 20702986
and preceding 20702988 . In scientific notation, it is written as 2.0702987 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20702986 positive integers (up to 20702987) that are relatively prime to 20702987.
20702987 has 2 divisors, whose sum is 20702988
The reverse of 20702987 is 78920702
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million seven hundred two thousand nine hundred eighty-seven
Scientific notation
2.0702987 × 10^7
Engineering notation
2.0702987 × 10^6
Prime Factorization
20702987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20702987
Product of the distinct prime numbers
The prime factorization of 20702987 is 20702987.
Since it has a total of 1 prime factors.
10 , 2 , 22 , 41 , 935 , 294 , 4675 , 3633 , 20102 , 37638 , 805127 , 253805 , 7863279 , 4568001 , 88031355 , 98405895 , 148579746 , 98919160 , 3075052403 , 4967366216
n×2
41405974
n×3
62108961
n×4
82811948
n×5
103514935
n÷2
10351493.5
n÷3
6900995.6666667
n÷3
5175746.75
n÷5
4140597.4
n2
428613670722169
n3
8.8735832529833E+21
n4
1.8370967872993E+29
n5
3.80333909052E+36
2 √n
4550.0535161688
3 √n
274.58554427776
4 √n
67.454084503229
5 √n
29.054044801819
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20702988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10351494
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4550.0536260576
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999033956
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20702987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20702987) is 20702988, the average is 10351494.
Base
System
Value
2
Binary
1001110111110011100001011
3
Ternary
1102221211011022
4
Quaternary
1032332130023
5
Quinary
20244443422
6
Senary
2015423055
8
Octal
116763413
10
Decimal
20702987
12
Duodecimal
6b24a8b
16
Hexadecimal
13be70b
20
Vigesimal
697h97
36
Base36
cbqiz
md5
474462b81773ff7c30bef6d9cf4c7ebc
sha1
0bba9741d81075f18949263baef35a79713e8907
sha256
05c5f219290167af4718a867d4d17fb59c3b0b6518a22ae54219378089245785
sha512
0d3c892512ec221cd126a910be33a2eaf572e973a456bf2aa3744df8cb06ad2ef83aac48383a6763e941acb5363c8a1bfbd67f50b94a2d7ec68608c3c56a1e80
ripemd-160
02b133ea633ac1b0ffb1037b945536f8558f6a5b
Diameter
41405974
Circumference
130080703.73313
Area
1.3465295591689E+15
Volume
3.7169578611453E+22
Surface area
5.3861182366757E+15
Circumference
130080703.73313
Perimeter
82811948
Area
428613670722169
Diagonal
29278444.997034
Surface area
2571682024333014
Volume
8.8735832529833E+21
Space diagonal
35858625.352438
Perimeter
62108961
Area
1.8559516362735E+14
Altitude
17929312.676219
Surface area
1.8559516362735E+14
Volume
1.045761815268E+21
Height
9759481.665678