20021187 is an odd 8-digits composite number following 20021186
and preceding 20021188 . In scientific notation, it is written as 2.0021187 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13036968 positive integers (up to 20021187) that are relatively prime to 20021187.
20021187 has 8 divisors, whose sum is 27315904
The reverse of 20021187 is 78112002
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million twenty-one thousand one hundred eighty-seven
Scientific notation
2.0021187 × 10^7
Engineering notation
2.0021187 × 10^6
Prime Factorization
3 × 43 × 155203
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20021187
Product of the distinct prime numbers
The prime factorization of 20021187 is 3 × 43 × 155203.
Since it has a total of 3 prime factors.
8 , 9 , 49 , 91 , 420 , 163 , 540 , 6658 , 54831 , 75319 , 320543 , 965727 , 5382199 , 2991848 , 21557239 , 83011608 , 305934047 , 803086148 , 9068334423 , 5599057130
n×2
40042374
n×3
60063561
n×4
80084748
n×5
100105935
n÷2
10010593.5
n÷3
6673729
n÷3
5005296.75
n÷5
4004237.4
n2
400847928888969
n3
8.0254513428488E+21
n4
1.6067906209458E+29
n5
3.2169855491801E+36
2 √n
4474.5041066022
3 √n
271.53757844302
4 √n
66.891734217332
5 √n
28.860108825923
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
-20021186
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 20021187 can be divided by 8 positive divisors.
The sum of these divisors (counting 20021187) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010111111111000011
3
Ternary
1101200011220110
4
Quaternary
1030113333003
5
Quinary
20111134222
6
Senary
1553042403
8
Octal
114277703
10
Decimal
20021187
12
Duodecimal
6856403
16
Hexadecimal
1317fc3
20
Vigesimal
652cj7
36
Base36
bx4g3
md5
d71ae606c5c262808b6d15ce3b3ee2d0
sha1
ecc27376e460f16326640e2b222b9c64506e0c83
sha256
0a194b7914b589548a253f2a494eaa3870b079b11346cc9442a7e861f842bdf8
sha512
3fee6b68606d08a271e1e337b3be81d8f7e661951301246f0a04bdcd4bc3506f6ffe087e54dd308049a463ecaf85ebfccd0520948570798aaddcc767eb3d7e1a
ripemd-160
280edf328019a7754b86d3d03a271c3c69950505
Diameter
40042374
Circumference
125796827.99069
Area
1.2593009086043E+15
Volume
3.3616931973915E+22
Surface area
5.0372036344171E+15
Circumference
125796827.99069
Perimeter
80084748
Area
400847928888969
Diagonal
28314234.190208
Surface area
2405087573333814
Volume
8.0254513428488E+21
Space diagonal
34677713.111838
Perimeter
60063561
Area
1.7357224473611E+14
Altitude
17338856.555919
Surface area
1.7357224473611E+14
Volume
9.4580851110184E+20
Height
9438078.0634026