21077881 is an odd 8-digits composite number following 21077880
and preceding 21077882 . In scientific notation, it is written as 2.1077881 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 19063440 positive integers (up to 21077881) that are relatively prime to 21077881.
21077881 has 8 divisors, whose sum is 23112000
The reverse of 21077881 is 18877012
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million seventy-seven thousand eight hundred eighty-one
Scientific notation
2.1077881 × 10^7
Engineering notation
2.1077881 × 10^6
Prime Factorization
11 × 199 × 9629
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21077881
Product of the distinct prime numbers
The prime factorization of 21077881 is 11 × 199 × 9629.
Since it has a total of 3 prime factors.
4 , 6 , 19 , 25 , 440 , 919 , 8556 , 2579 , 97103 , 9013 , 992259 , 79895 , 5889952 , 9005237 , 44087358 , 98597603 , 831440906 , 163596798 , 6411550889 , 1865701443
n×2
42155762
n×3
63233643
n×4
84311524
n×5
105389405
n÷2
10538940.5
n÷3
7025960.3333333
n÷3
5269470.25
n÷5
4215576.2
n2
444277067450161
n3
9.3644191587435E+21
n4
1.9738211266211E+29
n5
4.1603966822207E+36
2 √n
4591.0653447757
3 √n
276.23305684255
4 √n
67.75740066425
5 √n
29.15851415542
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
-21077880
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 21077881 can be divided by 8 positive divisors.
The sum of these divisors (counting 21077881) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011001111101111001
3
Ternary
1110122212102021
4
Quaternary
1100121331321
5
Quinary
20343443011
6
Senary
2031434441
8
Octal
120317571
10
Decimal
21077881
12
Duodecimal
7085a21
16
Hexadecimal
1419f79
20
Vigesimal
6beee1
36
Base36
cjrsp
md5
03dce8094ee23b6521ef0dca5f641f35
sha1
19f1b40f6314d31f084a0f25ab10e49f44cbcd36
sha256
3a1daa805320a7631517b5c503d46ee50bed87287934de80af7595980b9d36e8
sha512
474a2cd88f9e67a03c4e13d3957d2f2e71068fd0e8db707f5bda57f9fa19fd69a3e8449aa77cddc6669ce224439c2f5218e03e7efaa8e9f6f9f2fe6a2e566af9
ripemd-160
a4704ea300c699640949101875b4e684a25f1d64
Diameter
42155762
Circumference
132436232.20568
Area
1.3957375712598E+15
Volume
3.9225587245659E+22
Surface area
5.5829502850394E+15
Circumference
132436232.20568
Perimeter
84311524
Area
444277067450161
Diagonal
29808625.176286
Surface area
2665662404700966
Volume
9.3644191587435E+21
Space diagonal
36507960.807891
Perimeter
63233643
Area
1.9237761336535E+14
Altitude
18253980.403945
Surface area
1.9237761336535E+14
Volume
1.1036073815035E+21
Height
9936208.3920954