21082945 (number)

21082945 is an odd 8-digits composite number following 21082944 and preceding 21082946. In scientific notation, it is written as 2.1082945 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 15065280 positive integers (up to 21082945) that are relatively prime to 21082945.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-two thousand nine hundred forty-five

Notation

Scientific notation 2.1082945 × 10^7
Engineering notation 2.1082945 × 10^6

Prime Factorization of 21082945

Prime Factorization 5 × 13 × 31 × 10463

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21082945
Product of the distinct prime numbers

The prime factorization of 21082945 is 5 × 13 × 31 × 10463. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 5, 2, 84, 75, 818, 4142, 9365, 27751, 38152, 877529, 822043, 2967929, 5598194, 52379572, 92230119, 464427366, 172541025, 7734825761, 8030307582

Basic calculations (n = 21082945)

Multiplication

n×y
n×2 42165890
n×3 63248835
n×4 84331780
n×5 105414725

Division

n÷y
n÷2 10541472.5
n÷3 7027648.3333333
n÷3 5270736.25
n÷5 4216589

Exponentiation

ny
n2 444490569873025
n3 9.3711702376516E+21
n4 1.9757186670605E+29
n5 4.1653967993109E+36

Nth Root

y√n
2√n 4591.6168176362
3√n 276.25517690591
4√n 67.761470007935
5√n 29.159915098215

Divisors of 21082945

1, 5, 13, 31, 65, 155, 403, 2015, 10463, 52315, 136019, 324353, 680095, 1621765, 4216589, 21082945

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21082944
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21082945 can be divided by 16 positive divisors. The sum of these divisors (counting 21082945) is 1, the average is 0.0625.

Base conversion 21082945

Base System Value
2 Binary 1010000011011001101000001
3 Ternary 1110200010100211
4 Quaternary 1100123031001
5 Quinary 20344123240
6 Senary 2031514121
8 Octal 120331501
10 Decimal 21082945
12 Duodecimal 7088941
16 Hexadecimal 141b341
20 Vigesimal 6bf775
36 Base36 cjvpd

Cryptographic Hash Functions

md5 b771bb0186d3d78877c5eb6bb49d8580
sha1 c50be137a3b6ff0071b8d3839c7b20ea00a4a01d
sha256 3d8ed4eafd3194de37fb6e7b0b0825fbb6007721fcbba771da737b4d378856e9
sha512 68ce77d8e7e7e6f56d6c0c7efdb944c861b32946db28ca1e44d8d1380be4d4e525672c0fb72b76129445bc40b4d0564e59d98a3caad87d5dfe69fe9d873f0336
ripemd-160 744416e89a87a386b0451ee335a544ef3ed6f104

21082945 as geometric shapes

Circle

Radius = n
Diameter 42165890
Circumference 132468050.25608
Area 1.396408308903E+15

Sphere

Radius = n
Volume 3.9253866098861E+22
Surface area 5.5856332356121E+15
Circumference 132468050.25608

Square

Length = n
Perimeter 84331780
Area 444490569873025
Diagonal 29815786.753766

Cube

Length = n
Surface area 2666943419238150
Volume 9.3711702376516E+21
Space diagonal 36516731.91318

Equilateral Triangle

Length = n
Perimeter 63248835
Area 1.9247006262633E+14
Altitude 18258365.95659

Triangular Pyramid

Length = n
Surface area 1.9247006262633E+14
Volume 1.1044030037828E+21
Height 9938595.5845887