21490930 is an even 8-digits composite number following 21490929
and preceding 21490931 . In scientific notation, it is written as 2.1490930 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 8596368 positive integers (up to 21490930) that are relatively prime to 21490930.
21490930 has 8 divisors, whose sum is 38683692
The reverse of 21490930 is 03909412
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four hundred ninety thousand nine hundred thirty
Scientific notation
2.1490930 × 10^7
Engineering notation
2.1490930 × 10^6
Prime Factorization
2 × 5 × 2149093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490930
Product of the distinct prime numbers
The prime factorization of 21490930 is 2 × 5 × 2149093.
Since it has a total of 3 prime factors.
4 , 6 , 87 , 36 , 680 , 80 , 3855 , 2550 , 41615 , 83206 , 722482 , 624131 , 2817020 , 5332057 , 36118078 , 30782428 , 785849128 , 717867581 , 7447889747 , 7717745898
n×2
42981860
n×3
64472790
n×4
85963720
n×5
107454650
n÷2
10745465
n÷3
7163643.3333333
n÷3
5372732.5
n÷5
4298186
n2
461860072264900
n3
9.9258024828399E+21
n4
2.1331472635254E+29
n5
4.5843318520116E+36
2 √n
4635.8311013237
3 √n
278.0257812986
4 √n
68.086937817203
5 √n
29.271908701009
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
-21490929
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 21490930 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490930) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110011110010
3
Ternary
1111102212000101
4
Quaternary
1101332303302
5
Quinary
21000202210
6
Senary
2044343014
8
Octal
121766362
10
Decimal
21490930
12
Duodecimal
7244a6a
16
Hexadecimal
147ecf2
20
Vigesimal
6e676a
36
Base36
csmia
md5
4c1e1508d73f8d3101c472481a988274
sha1
c3acf2a8b63f52a711bd7fcd431148c495977e23
sha256
b5805f50a3fe883e7e5488adaca2928ea814e24f7765da6949098ddd617ad809
sha512
5b12bc7ea70559d816365a1345b0d63cc56e89b32efce026a854dd844b4cd7f2c48c47864e2e87d57e0728c00beab70dd9bb5ec0ec09363f1d3b439354e47c59
ripemd-160
58b87cbdb101fb7c98eb350a531918f85221e2fe
Diameter
42981860
Circumference
135031495.61362
Area
1.4509762100139E+15
Volume
4.1577104214764E+22
Surface area
5.8039048400554E+15
Circumference
135031495.61362
Perimeter
85963720
Area
461860072264900
Diagonal
30392764.674011
Surface area
2771160433589400
Volume
9.9258024828399E+21
Space diagonal
37223382.661906
Perimeter
64472790
Area
1.9999127778756E+14
Altitude
18611691.330953
Surface area
1.9999127778756E+14
Volume
1.1697670407224E+21
Height
10130921.558004