20294987 is an odd 8-digits composite number following 20294986
and preceding 20294988 . In scientific notation, it is written as 2.0294987 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 19526400 positive integers (up to 20294987) that are relatively prime to 20294987.
20294987 has 8 divisors, whose sum is 21071232
The reverse of 20294987 is 78949202
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty million two hundred ninety-four thousand nine hundred eighty-seven
Scientific notation
2.0294987 × 10^7
Engineering notation
2.0294987 × 10^6
Prime Factorization
31 × 181 × 3617
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20294987
Product of the distinct prime numbers
The prime factorization of 20294987 is 31 × 181 × 3617.
Since it has a total of 3 prime factors.
4 , 3 , 66 , 78 , 691 , 315 , 2715 , 7084 , 91119 , 82364 , 202305 , 114196 , 5454630 , 7493318 , 72303469 , 13507745 , 949633504 , 712421138 , 2465203642 , 7455703261
n×2
40589974
n×3
60884961
n×4
81179948
n×5
101474935
n÷2
10147493.5
n÷3
6764995.6666667
n÷3
5073746.75
n÷5
4058997.4
n2
411886497330169
n3
8.3592311087913E+21
n4
1.6965048668292E+29
n5
3.4430544217734E+36
2 √n
4504.995782462
3 √n
272.76978359894
4 √n
67.119265359969
5 √n
28.93861590054
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
-20294986
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 20294987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20294987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101011010110101001011
3
Ternary
1102012002111012
4
Quaternary
1031122311023
5
Quinary
20143414422
6
Senary
2002554135
8
Octal
115326513
10
Decimal
20294987
12
Duodecimal
696894b
16
Hexadecimal
135ad4b
20
Vigesimal
66gh97
36
Base36
c2zpn
md5
587ba358858c6ebe57d0e1fefaa6f183
sha1
3807e57a761baae993751a75206ddef1bf5ff1cf
sha256
2bfb5ee07619759d4d63d6971ba8724e2f365338c9a05d6312ffc27e21e525e3
sha512
286ed4f4ff5e41ded9f52fe591f38bb4579b0d0ea8edfe8ed9320ee5ce0768c547ad93c16dbb3a20d6756cfa6d2569036157a1e9a581c4aba4702f58f7790ae1
ripemd-160
b2e5c9c26ef65437df9739a50edee98c3a11f47b
Diameter
40589974
Circumference
127517164.1278
Area
1.2939795941253E+15
Volume
3.5015065388051E+22
Surface area
5.1759183765012E+15
Circumference
127517164.1278
Perimeter
81179948
Area
411886497330169
Diagonal
28701445.863586
Surface area
2471318983981014
Volume
8.3592311087913E+21
Space diagonal
35151948.62295
Perimeter
60884961
Area
1.7835208508186E+14
Altitude
17575974.311475
Surface area
1.7835208508186E+14
Volume
9.8514483375531E+20
Height
9567148.6211952