21297680 is an even 8-digits composite number following 21297679
and preceding 21297681 . In scientific notation, it is written as 2.1297680 × 10^7.
The sum of its digits is 35. It has a total of 6 prime factors and 20 positive divisors.
There are 8519040 positive integers (up to 21297680) that are relatively prime to 21297680.
21297680 has 20 divisors, whose sum is 49517292
The reverse of 21297680 is 08679212
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million two hundred ninety-seven thousand six hundred eighty
Scientific notation
2.1297680 × 10^7
Engineering notation
2.1297680 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 5 × 266221
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2662210
Product of the distinct prime numbers
The prime factorization of 21297680 is 2 × 2 × 2 × 2 × 5 × 266221.
Since it has a total of 6 prime factors.
8 , 5 , 33 , 17 , 552 , 638 , 2988 , 1830 , 68478 , 70694 , 175992 , 735164 , 1160650 , 77576 , 82804152 , 14160092 , 768263953 , 117633175 , 7235332668 , 471607835
n×2
42595360
n×3
63893040
n×4
85190720
n×5
106488400
n÷2
10648840
n÷3
7099226.6666667
n÷3
5324420
n÷5
4259536
n2
453591173382400
n3
9.6604396615229E+21
n4
2.0574495257042E+29
n5
4.38189016146E+36
2 √n
4614.940953035
3 √n
277.18991958468
4 √n
67.933356703721
5 √n
29.219074751351
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 40 , 80 , 266221 , 532442 , 1064884 , 1331105 , 2129768 , 2662210 , 4259536 , 5324420 , 10648840 , 21297680
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21297679
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21297680 can be divided by 20 positive divisors.
The sum of these divisors (counting 21297680) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010001001111101000010000
3
Ternary
1111002000220222
4
Quaternary
1101033220100
5
Quinary
20423011210
6
Senary
2040252212
8
Octal
121175020
10
Decimal
21297680
12
Duodecimal
7171068
16
Hexadecimal
144fa10
20
Vigesimal
6d2440
36
Base36
cohe8
md5
c950d7767195e6a7cdc8dee288cd24f0
sha1
80b51194255a243f2fd91b5df2ad45ad7249fd6c
sha256
14f00a0955d3a642fb17ab701f09894fda8126b998b02d900e872601d342f096
sha512
833c52cfe26ec793724bb5c18153ba249e5746f185ae51def5caa5c9e51bf608d677d7ab5264906be6879652f8f140ca671a81f7e01f6e213046a9af7a2932cf
ripemd-160
1a9823f13f3ee9bb1e98cc06d6f543640227abdd
Diameter
42595360
Circumference
133817270.05301
Area
1.4249986980313E+15
Volume
4.0465555028117E+22
Surface area
5.6999947921253E+15
Circumference
133817270.05301
Perimeter
85190720
Area
453591173382400
Diagonal
30119467.903082
Surface area
2721547040294400
Volume
9.6604396615229E+21
Space diagonal
36888663.843344
Perimeter
63893040
Area
1.9641073954078E+14
Altitude
18444331.921672
Surface area
1.9641073954078E+14
Volume
1.1384937323177E+21
Height
10039822.634361