21798980 is an even 8-digits composite number following 21798979
and preceding 21798981 . In scientific notation, it is written as 2.1798980 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors.
There are 7473888 positive integers (up to 21798980) that are relatively prime to 21798980.
21798980 has 12 divisors, whose sum is 39238416
The reverse of 21798980 is 08989712
Previous prime number is 35
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million seven hundred ninety-eight thousand nine hundred eighty
Scientific notation
2.1798980 × 10^7
Engineering notation
2.1798980 × 10^6
Prime Factorization
2 × 2 × 35 × 155707
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10899490
Product of the distinct prime numbers
The prime factorization of 21798980 is 2 × 2 × 35 × 155707.
Since it has a total of 4 prime factors.
8 , 2 , 14 , 51 , 40 , 836 , 9233 , 4816 , 61824 , 58251 , 851240 , 881062 , 9961269 , 7285470 , 57609037 , 30552969 , 536741989 , 62704880 , 2281070898 , 2554796644
n×2
43597960
n×3
65396940
n×4
87195920
n×5
108994900
n÷2
10899490
n÷3
7266326.6666667
n÷3
5449745
n÷5
4359796
n2
475195529040400
n3
1.0358777833641E+22
n4
2.2581079081999E+29
n5
4.9224449128691E+36
2 √n
4668.9377806949
3 √n
279.34788718695
4 √n
68.329625937033
5 √n
29.3553480942
1 , 2 , 4 , 35 , 70 , 140 , 155707 , 311414 , 622828 , 5449745 , 10899490 , 21798980
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21798979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21798980 can be divided by 12 positive divisors.
The sum of these divisors (counting 21798980) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011001010000001000100
3
Ternary
1112000111120122
4
Quaternary
1103022001010
5
Quinary
21040031410
6
Senary
2055121112
8
Octal
123120104
10
Decimal
21798980
12
Duodecimal
7373198
16
Hexadecimal
14ca044
20
Vigesimal
6g4h90
36
Base36
cz878
md5
9361b83efd181326b2ec36466a84f89f
sha1
547806a66253c69596a890d74e01586d07a82433
sha256
5febf801ecd4c0c5ba66563d092ead05d0ca338aabe25b9c94751737a752b9ea
sha512
ae9dbfad4b69d8013861ee96f7e6e546b153e1d141b8d0aed4ae487e5df0ce2f4bcd96669471d61402186e31792f1b7fbe061c0f24fd0cc0ef149607cd0abf68
ripemd-160
c60996a15604126f9371cba59180ed596a39eaf9
Diameter
43597960
Circumference
136967030.8475
Area
1.492870783052E+15
Volume
4.3390747123114E+22
Surface area
5.9714831322081E+15
Circumference
136967030.8475
Perimeter
87195920
Area
475195529040400
Diagonal
30828413.1619
Surface area
2851173174242400
Volume
1.0358777833641E+22
Space diagonal
37756940.913178
Perimeter
65396940
Area
2.0576569995689E+14
Altitude
18878470.456589
Surface area
2.0576569995689E+14
Volume
1.2207936751621E+21
Height
10276137.720633