21820008 is an even 8-digits composite number following 21820007
and preceding 21820009 . In scientific notation, it is written as 2.1820008 × 10^7.
The sum of its digits is 21. It has a total of 6 prime factors and 32 positive divisors.
There are 5962176 positive integers (up to 21820008) that are relatively prime to 21820008.
21820008 has 32 divisors, whose sum is 44732160
The reverse of 21820008 is 80002812
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eight hundred twenty thousand eight
Scientific notation
2.1820008 × 10^7
Engineering notation
2.1820008 × 10^6
Prime Factorization
2 × 2 × 2 × 21 × 23 × 5647
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5455002
Product of the distinct prime numbers
The prime factorization of 21820008 is 2 × 2 × 2 × 21 × 23 × 5647.
Since it has a total of 6 prime factors.
8 , 3 , 31 , 29 , 939 , 43 , 6942 , 4533 , 40183 , 28243 , 615540 , 396650 , 489687 , 385010 , 79638489 , 72974673 , 625623872 , 699413472 , 959358353 , 3236900711
n×2
43640016
n×3
65460024
n×4
87280032
n×5
109100040
n÷2
10910004
n÷3
7273336
n÷3
5455002
n÷5
4364001.6
n2
476112749120064
n3
1.0388783994702E+22
n4
2.2668334987466E+29
n5
4.946232507732E+36
2 √n
4671.1891419637
3 √n
279.43768098452
4 √n
68.346098220482
5 √n
29.361009333548
1 , 2 , 4 , 8 , 21 , 23 , 42 , 46 , 84 , 92 , 168 , 184 , 483 , 966 , 1932 , 3864 , 5647 , 11294 , 22588 , 45176 , 118587 , 129881 , 237174 , 259762 , 474348 , 519524 , 948696 , 1039048 , 2727501 , 5455002 , 10910004 , 21820008
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21820007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21820008 can be divided by 32 positive divisors.
The sum of these divisors (counting 21820008) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011001111001001101000
3
Ternary
1112001120102110
4
Quaternary
1103033021220
5
Quinary
21041220013
6
Senary
2055402320
8
Octal
123171150
10
Decimal
21820008
12
Duodecimal
73833a0
16
Hexadecimal
14cf268
20
Vigesimal
6g7a08
36
Base36
czofc
md5
e45c8d9e110dd5cd009e1e15457d917b
sha1
5cecf83612cc70f4a00d43fe7fa1b075b1cc8fca
sha256
67d0e14d742a4f84b27c6720b74e52a564639cf0fc95ba12557914af8b80a1a0
sha512
7d1f0d25e5717d8c3baba63877975b565f87d989e9dc093f1282d125162fa77f4d6aac3e40ee9617298fee1e1945ea8f38eeb355284a68105ac242c72e8107e0
ripemd-160
e81c5a15fd1d76ee7f6201c3a509d54bccf69519
Diameter
43640016
Circumference
137099153.66814
Area
1.495752314916E+15
Volume
4.3516436636648E+22
Surface area
5.9830092596641E+15
Circumference
137099153.66814
Perimeter
87280032
Area
476112749120064
Diagonal
30858151.244689
Surface area
2856676494720384
Volume
1.0388783994702E+22
Space diagonal
37793362.477559
Perimeter
65460024
Area
2.0616286790181E+14
Altitude
18896681.23878
Surface area
2.0616286790181E+14
Volume
1.224329935156E+21
Height
10286050.414896