21307989 (number)

21307989 is an odd 8-digits composite number following 21307988 and preceding 21307990. In scientific notation, it is written as 2.1307989 × 10^7. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 14205324 positive integers (up to 21307989) that are relatively prime to 21307989.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred seven thousand nine hundred eighty-nine

Notation

Scientific notation 2.1307989 × 10^7
Engineering notation 2.1307989 × 10^6

Prime Factorization of 21307989

Prime Factorization 3 × 7102663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21307989
Product of the distinct prime numbers

The prime factorization of 21307989 is 3 × 7102663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21307989)

Multiplication

n×y
n×2 42615978
n×3 63923967
n×4 85231956
n×5 106539945

Division

n÷y
n÷2 10653994.5
n÷3 7102663
n÷3 5326997.25
n÷5 4261597.8

Exponentiation

ny
n2 454030395224121
n3 9.6744746671012E+21
n4 2.0614359978737E+29
n5 4.3925055566897E+36

Nth Root

y√n
2√n 4616.0577336078
3√n 277.23463634796
4√n 67.941575884047
5√n 29.221902863495

Divisors of 21307989

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21307988
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21307989 can be divided by 4 positive divisors. The sum of these divisors (counting 21307989) is 1, the average is 0.25.

Base conversion 21307989

Base System Value
2 Binary 1010001010010001001010101
3 Ternary 1111002120001210
4 Quaternary 1101102021111
5 Quinary 20423323424
6 Senary 2040412033
8 Octal 121221125
10 Decimal 21307989
12 Duodecimal 7177019
16 Hexadecimal 1452255
20 Vigesimal 6d39j9
36 Base36 copcl

Cryptographic Hash Functions

md5 a79adb07a4cf78e002ef87565aaadb2b
sha1 30a182658fcbf4864e86c4b81ff043fda2ac4545
sha256 878c91dfb3e1751e8dc83006386b7d065530eb9a5ead7e2f341213c9414ebd83
sha512 53759a5e781af7c9fa899760e555eb4cacb374764706937ed87bd0e4ec89235d785deddf2edb99b2d12eae6a8887d2d7b3105978ba6348a9d4dcae8aac6c2790
ripemd-160 4d8b2bbaa66e7f6e44186fc8551c19c65e85933a

21307989 as geometric shapes

Circle

Radius = n
Diameter 42615978
Circumference 133882043.41034
Area 1.4263785541426E+15

Sphere

Radius = n
Volume 4.0524344722008E+22
Surface area 5.7055142165703E+15
Circumference 133882043.41034

Square

Length = n
Perimeter 85231956
Area 454030395224121
Diagonal 30134047.030697

Cube

Length = n
Surface area 2724182371344726
Volume 9.6744746671012E+21
Space diagonal 36906519.555119

Equilateral Triangle

Length = n
Perimeter 63923967
Area 1.9660092817719E+14
Altitude 18453259.777559

Triangular Pyramid

Length = n
Surface area 1.9660092817719E+14
Volume 1.1401477735875E+21
Height 10044682.343566