20987066 is an even 8-digits composite number following 20987065
and preceding 20987067 . In scientific notation, it is written as 2.0987066 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 10209888 positive integers (up to 20987066) that are relatively prime to 20987066.
20987066 has 8 divisors, whose sum is 32331540
The reverse of 20987066 is 66078902
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred eighty-seven thousand sixty-six
Scientific notation
2.0987066 × 10^7
Engineering notation
2.0987066 × 10^6
Prime Factorization
2 × 37 × 283609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20987066
Product of the distinct prime numbers
The prime factorization of 20987066 is 2 × 37 × 283609.
Since it has a total of 3 prime factors.
4 , 3 , 31 , 56 , 453 , 392 , 1392 , 1463 , 96532 , 3141 , 512325 , 658480 , 2234517 , 9464258 , 43847298 , 32254593 , 788248908 , 127043285 , 4492280378 , 9403334827
n×2
41974132
n×3
62961198
n×4
83948264
n×5
104935330
n÷2
10493533
n÷3
6995688.6666667
n÷3
5246766.5
n÷5
4197413.2
n2
440456939288356
n3
9.2438988550027E+21
n4
1.9400231536727E+29
n5
4.0715393967656E+36
2 √n
4581.1642624992
3 √n
275.83576485435
4 √n
67.684298493072
5 √n
29.133344585862
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
-20987065
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 20987066 can be divided by 8 positive divisors.
The sum of these divisors (counting 20987066) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000011110010111010
3
Ternary
1110111020211202
4
Quaternary
1100003302322
5
Quinary
20333041231
6
Senary
2025454202
8
Octal
120036272
10
Decimal
20987066
12
Duodecimal
7041362
16
Hexadecimal
1403cba
20
Vigesimal
6b37d6
36
Base36
chtq2
md5
a571a514756280853f083ff6fa4139ba
sha1
74bbc596578c91cab73c2c333d8227df7ad42d1d
sha256
3f6d2421f5bba2d08cabd0a6d61848867ec32a0a7fb74841f63a1b781ec32581
sha512
ee8739f10262c82d3db282e020797d3e8ed59d83c40688fe230177eaec006748b6df780612ef48c75eec5990cc554b439c2af079117c3f74398c86745e16dd55
ripemd-160
a30be257664fea90183f4f593b993c3744252332
Diameter
41974132
Circumference
131865624.73201
Area
1.3837362846909E+15
Volume
3.8720752977872E+22
Surface area
5.5349451387638E+15
Circumference
131865624.73201
Perimeter
83948264
Area
440456939288356
Diagonal
29680193.371619
Surface area
2642741635730136
Volume
9.2438988550027E+21
Space diagonal
36350664.613801
Perimeter
62961198
Area
1.9072344934843E+14
Altitude
18175332.306901
Surface area
1.9072344934843E+14
Volume
1.0894039274958E+21
Height
9893397.7905398