20999931 is an odd 8-digits composite number following 20999930
and preceding 20999932 . In scientific notation, it is written as 2.0999931 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 13984512 positive integers (up to 20999931) that are relatively prime to 20999931.
20999931 has 8 divisors, whose sum is 28030800
The reverse of 20999931 is 13999902
Previous prime number is 1049
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million nine hundred ninety-nine thousand nine hundred thirty-one
Scientific notation
2.0999931 × 10^7
Engineering notation
2.0999931 × 10^6
Prime Factorization
3 × 1049 × 6673
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20999931
Product of the distinct prime numbers
The prime factorization of 20999931 is 3 × 1049 × 6673.
Since it has a total of 3 prime factors.
2 , 6 , 83 , 31 , 223 , 57 , 3290 , 7028 , 16775 , 86455 , 942821 , 766406 , 5290413 , 5599119 , 35993891 , 7643420 , 709254730 , 380216785 , 1939674326 , 8688630376
n×2
41999862
n×3
62999793
n×4
83999724
n×5
104999655
n÷2
10499965.5
n÷3
6999977
n÷3
5249982.75
n÷5
4199986.2
n2
440997102004761
n3
9.2609087132999E+21
n4
1.944784439766E+29
n5
4.0840339044959E+36
2 √n
4582.5681664324
3 √n
275.8921154699
4 √n
67.694668670675
5 √n
29.136915438608
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
-20999930
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 20999931 can be divided by 8 positive divisors.
The sum of these divisors (counting 20999931) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110111011111011
3
Ternary
1110111220111020
4
Quaternary
1100012323323
5
Quinary
20333444211
6
Senary
2030033523
8
Octal
120067373
10
Decimal
20999931
12
Duodecimal
70488a3
16
Hexadecimal
1406efb
20
Vigesimal
6b4jgb
36
Base36
ci3nf
md5
924ab41dfe6fd3a9e09788048903b182
sha1
598a7226fadaac179e0aaaebfa91e7fe89991317
sha256
45349410a9d4216d531cce95238b948d15a7f37ed8d3ad4623956ed443f89850
sha512
2a23dd03c15b96f321d9a2268e212218eec0083ea05f01841cdd8fc5072fe4714c62643af021a19f20e0d6f3cb84977f9d2bcf186b25df4f58053f7e7223d56d
ripemd-160
58dc33aef24396443c2bffd44e58ab9063bf40c9
Diameter
41999862
Circumference
131946457.91099
Area
1.3854332559125E+15
Volume
3.8792003705692E+22
Surface area
5.5417330236502E+15
Circumference
131946457.91099
Perimeter
83999724
Area
440997102004761
Diagonal
29698387.229099
Surface area
2645982612028566
Volume
9.2609087132999E+21
Space diagonal
36372947.447441
Perimeter
62999793
Area
1.9095734666572E+14
Altitude
18186473.72372
Surface area
1.9095734666572E+14
Volume
1.0914085585207E+21
Height
9899462.4096997