20987101 is an odd 8-digits composite number following 20987100
and preceding 20987102 . In scientific notation, it is written as 2.0987101 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20971552 positive integers (up to 20987101) that are relatively prime to 20987101.
20987101 has 4 divisors, whose sum is 21002652
The reverse of 20987101 is 10178902
Previous prime number is 1493
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million nine hundred eighty-seven thousand one hundred one
Scientific notation
2.0987101 × 10^7
Engineering notation
2.0987101 × 10^6
Prime Factorization
1493 × 14057
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20987101
Product of the distinct prime numbers
The prime factorization of 20987101 is 1493 × 14057.
Since it has a total of 2 prime factors.
9 , 5 , 69 , 40 , 330 , 228 , 5613 , 4257 , 97882 , 83093 , 405458 , 225912 , 5978760 , 8293087 , 842269 , 53639006 , 318520395 , 457552379 , 2665328549 , 516110807
n×2
41974202
n×3
62961303
n×4
83948404
n×5
104935505
n÷2
10493550.5
n÷3
6995700.3333333
n÷3
5246775.25
n÷5
4197420.2
n2
440458408384201
n3
9.2439451030585E+21
n4
1.9400360951634E+29
n5
4.0715733472841E+36
2 √n
4581.1680824873
3 √n
275.83591819079
4 √n
67.684326712225
5 √n
29.133354302955
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20987100
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20987101 can be divided by 4 positive divisors.
The sum of these divisors (counting 20987101) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000011110011011101
3
Ternary
1110111020220001
4
Quaternary
1100003303131
5
Quinary
20333041401
6
Senary
2025454301
8
Octal
120036335
10
Decimal
20987101
12
Duodecimal
7041391
16
Hexadecimal
1403cdd
20
Vigesimal
6b37f1
36
Base36
chtr1
md5
3c3d9acef0642eee28f69010d97aa14c
sha1
dd9c911a1159f46e37fe26546336ca47faa81d24
sha256
7eea31219cb59f229a8a756e08fb5d747e2476badc531df9d07e21d97d6e0297
sha512
0e8d17bedf07867164c8d8ec08aeee27f3a118cdee4cd1b7a47187b323ec0ccd0ff9f7acb3723a43d1a8194d18279340babd7a9c64211240c9353c7435bd7bad
ripemd-160
3bdf2ff231adb74475f6690e7372068afbc5faca
Diameter
41974202
Circumference
131865844.64349
Area
1.3837408999917E+15
Volume
3.8720946701274E+22
Surface area
5.5349635999666E+15
Circumference
131865844.64349
Perimeter
83948404
Area
440458408384201
Diagonal
29680242.869094
Surface area
2642750450305206
Volume
9.2439451030585E+21
Space diagonal
36350725.23558
Perimeter
62961303
Area
1.9072408548559E+14
Altitude
18175362.61779
Surface area
1.9072408548559E+14
Volume
1.0894093778815E+21
Height
9893414.289698