20207987 is an odd 8-digits prime number following 20207986
and preceding 20207988 . In scientific notation, it is written as 2.0207987 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 20207986 positive integers (up to 20207987) that are relatively prime to 20207987.
20207987 has 2 divisors, whose sum is 20207988
The reverse of 20207987 is 78970202
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million two hundred seven thousand nine hundred eighty-seven
Scientific notation
2.0207987 × 10^7
Engineering notation
2.0207987 × 10^6
Prime Factorization
20207987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20207987
Product of the distinct prime numbers
The prime factorization of 20207987 is 20207987.
Since it has a total of 1 prime factors.
10 , 1 , 35 , 78 , 152 , 195 , 9416 , 8841 , 64161 , 98055 , 981214 , 14325 , 3589485 , 877559 , 68286912 , 87815311 , 483469037 , 321933539 , 8091887979 , 2987014044
n×2
40415974
n×3
60623961
n×4
80831948
n×5
101039935
n÷2
10103993.5
n÷3
6735995.6666667
n÷3
5051996.75
n÷5
4041597.4
n2
408362738592169
n3
8.2521889127549E+21
n4
1.667601262705E+29
n5
3.3698864637925E+36
2 √n
4495.3294651227
3 √n
272.37945794983
4 √n
67.04721817587
5 √n
28.913762592928
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20207988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10103994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4495.3295763492
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999010292
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20207987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20207987) is 20207988, the average is 10103994.
Base
System
Value
2
Binary
1001101000101100101110011
3
Ternary
1102000200010222
4
Quaternary
1031011211303
5
Quinary
20133123422
6
Senary
2001043255
8
Octal
115054563
10
Decimal
20207987
12
Duodecimal
692652b
16
Hexadecimal
1345973
20
Vigesimal
665jj7
36
Base36
c14kz
md5
d0a18a275f211fb305a30adc87f9a579
sha1
9083c910a0d4e3ef967e34d430ceb8c8c15f8d3e
sha256
3faaab0a52ffaec64349aa38f6a530eb3830a375e1ab45700d2817228cbf9c95
sha512
bc99d3547357be45648bf614d10dd7b021e165edabbb8f61a98c63d86332254b80243854dea8fb327ad0794860e9bb288e2aa63cbf12d593bf2c6259db2f7923
ripemd-160
68a52e3becab1d3dc64bbe565e4abec44b6299f0
Diameter
40415974
Circumference
126970527.00608
Area
1.282909379561E+15
Volume
3.4566688085795E+22
Surface area
5.1316375182439E+15
Circumference
126970527.00608
Perimeter
80831948
Area
408362738592169
Diagonal
28578409.283659
Surface area
2450176431553014
Volume
8.2521889127549E+21
Space diagonal
35001260.202691
Perimeter
60623961
Area
1.768262527899E+14
Altitude
17500630.101346
Surface area
1.768262527899E+14
Volume
9.7252978997358E+20
Height
9526136.4278864