21008220 is an even 8-digits composite number following 21008219
and preceding 21008221 . In scientific notation, it is written as 2.1008220 × 10^7.
The sum of its digits is 15. It has a total of 4 prime factors and 12 positive divisors.
There are 5602176 positive integers (up to 21008220) that are relatively prime to 21008220.
21008220 has 12 divisors, whose sum is 39215456
The reverse of 21008220 is 02280012
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million eight thousand two hundred twenty
Scientific notation
2.1008220 × 10^7
Engineering notation
2.1008220 × 10^6
Prime Factorization
2 × 2 × 15 × 350137
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10504110
Product of the distinct prime numbers
The prime factorization of 21008220 is 2 × 2 × 15 × 350137.
Since it has a total of 4 prime factors.
8 , 5 , 47 , 71 , 995 , 776 , 1028 , 4328 , 3902 , 38619 , 19261 , 452393 , 1294168 , 2509729 , 15997696 , 58765965 , 993067224 , 290092693 , 4747115691 , 3713119421
n×2
42016440
n×3
63024660
n×4
84032880
n×5
105041100
n÷2
10504110
n÷3
7002740
n÷3
5252055
n÷5
4201644
n2
441345307568400
n3
9.2718793173646E+21
n4
1.9478568051265E+29
n5
4.0921004290594E+36
2 √n
4583.4724827362
3 √n
275.92841033397
4 √n
67.701347717281
5 √n
29.139215234442
1 , 2 , 4 , 15 , 30 , 60 , 350137 , 700274 , 1400548 , 5252055 , 10504110 , 21008220
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
-21008219
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 21008220 can be divided by 12 positive divisors.
The sum of these divisors (counting 21008220) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001000111101011100
3
Ternary
1110112022212020
4
Quaternary
1100020331130
5
Quinary
20334230340
6
Senary
2030140140
8
Octal
120107534
10
Decimal
21008220
12
Duodecimal
7051650
16
Hexadecimal
1408f5c
20
Vigesimal
6b60b0
36
Base36
cia1o
md5
c31220b424d11a1b54637560ef24dc91
sha1
1ae25ba3ba56247db4afd2bb02ed193862d3cf7a
sha256
e1128c23d1ba6907cd92202e29a922317c4efb1a2280e01b19b3f3dc60a83c46
sha512
87bcff1ef01776ab28971b46cd896336f8c2474fa6dc3fbed8c5bee5fad69b103c599761d254e069ce8982260f9282c2b64d4d67d682c5df59c2aafebff135dd
ripemd-160
3306089a12449470ae4bcef55bbcaf3a8f2126d1
Diameter
42016440
Circumference
131998539.234
Area
1.3865271759532E+15
Volume
3.8837957264538E+22
Surface area
5.5461087038129E+15
Circumference
131998539.234
Perimeter
84032880
Area
441345307568400
Diagonal
29710109.645318
Surface area
2648071845410400
Volume
9.2718793173646E+21
Space diagonal
36387304.416585
Perimeter
63024660
Area
1.9110812409765E+14
Altitude
18193652.208292
Surface area
1.9110812409765E+14
Volume
1.0927014566086E+21
Height
9903369.8817726