20407987 is an odd 8-digits prime number following 20407986
and preceding 20407988 . In scientific notation, it is written as 2.0407987 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 20407986 positive integers (up to 20407987) that are relatively prime to 20407987.
20407987 has 2 divisors, whose sum is 20407988
The reverse of 20407987 is 78970402
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty million four hundred seven thousand nine hundred eighty-seven
Scientific notation
2.0407987 × 10^7
Engineering notation
2.0407987 × 10^6
Prime Factorization
20407987
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20407987
Product of the distinct prime numbers
The prime factorization of 20407987 is 20407987.
Since it has a total of 1 prime factors.
6 , 9 , 45 , 100 , 68 , 370 , 8390 , 723 , 86080 , 85229 , 486126 , 44894 , 2360275 , 919197 , 25543127 , 71216424 , 668228019 , 278454000 , 1412279916 , 7144729184
n×2
40815974
n×3
61223961
n×4
81631948
n×5
102039935
n÷2
10203993.5
n÷3
6802662.3333333
n÷3
5101996.75
n÷5
4081597.4
n2
416485933392169
n3
8.4996395143503E+21
n4
1.7346053271355E+29
n5
3.5399802966311E+36
2 √n
4517.5200054897
3 √n
273.27509648967
4 √n
67.21249887848
5 √n
28.970769701942
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20407988
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10203994
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4517.5201161699
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999019992
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20407987 can be divided by 2 positive divisors.
The sum of these divisors (counting 20407987) is 20407988, the average is 10203994.
Base
System
Value
2
Binary
1001101110110011010110011
3
Ternary
1102101211111101
4
Quaternary
1031312122303
5
Quinary
20211023422
6
Senary
2005225231
8
Octal
115663263
10
Decimal
20407987
12
Duodecimal
6a02217
16
Hexadecimal
13766b3
20
Vigesimal
67ajj7
36
Base36
c5ewj
md5
97d730d1b6cf9e840471a5cf00c571ae
sha1
40951dd059487bf8ae417f692126530e7313b781
sha256
14ec188b47e2ff81070c58737f019754889f78ed89a06d1723a5be21aa8a9200
sha512
90f3932583e848bc921c1f3c5f8bcb9dd8174eb2396da369f8295b4edf30fb9dd0087c453b906f04602b9a3c142e66918ac9062edd5a0ba66bff8da87e77d806
ripemd-160
3b53fb8fb1f35eefce61660a13e6279e5a13e418
Diameter
40815974
Circumference
128227164.06751
Area
1.3084291486683E+15
Volume
3.5603206741926E+22
Surface area
5.2337165946733E+15
Circumference
128227164.06751
Perimeter
81631948
Area
416485933392169
Diagonal
28861251.996134
Surface area
2498915600353014
Volume
8.4996395143503E+21
Space diagonal
35347670.364205
Perimeter
61223961
Area
1.8034369931825E+14
Altitude
17673835.182103
Surface area
1.8034369931825E+14
Volume
1.0016921230397E+21
Height
9620417.3320446