21305440 (number)

21305440 is an even 8-digits composite number following 21305439 and preceding 21305441. In scientific notation, it is written as 2.1305440 × 10^7. The sum of its digits is 19. It has a total of 7 prime factors and 24 positive divisors. There are 7865856 positive integers (up to 21305440) that are relatively prime to 21305440.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred five thousand four hundred forty

Notation

Scientific notation 2.1305440 × 10^7
Engineering notation 2.1305440 × 10^6

Prime Factorization of 21305440

Prime Factorization 2 × 2 × 2 × 2 × 2 × 65 × 10243

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1331590
Product of the distinct prime numbers

The prime factorization of 21305440 is 2 × 2 × 2 × 2 × 2 × 65 × 10243. Since it has a total of 7 prime factors.

Most popular turbo-numbers

3, 8, 15, 45, 253, 977, 3364, 9106, 44373, 12496, 181469, 10913, 1445403, 255429, 87040366, 95714643, 772747006, 703144660, 3507335881, 8211661060

Basic calculations (n = 21305440)

Multiplication

n×y
n×2 42610880
n×3 63916320
n×4 85221760
n×5 106527200

Division

n÷y
n÷2 10652720
n÷3 7101813.3333333
n÷3 5326360
n÷5 4261088

Exponentiation

ny
n2 453921773593600
n3 9.671003111992E+21
n4 2.0604497654236E+29
n5 4.3898788850246E+36

Nth Root

y√n
2√n 4615.7816239506
3√n 277.22358103801
4√n 67.939543889774
5√n 29.221203687285

Divisors of 21305440

1, 2, 4, 8, 16, 32, 65, 130, 260, 520, 1040, 2080, 10243, 20486, 40972, 81944, 163888, 327776, 665795, 1331590, 2663180, 5326360, 10652720, 21305440

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21305439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21305440 can be divided by 24 positive divisors. The sum of these divisors (counting 21305440) is 1, the average is 0.041666666666667.

Base conversion 21305440

Base System Value
2 Binary 1010001010001100001100000
3 Ternary 1111002102120101
4 Quaternary 1101101201200
5 Quinary 20423233230
6 Senary 2040352144
8 Octal 121214140
10 Decimal 21305440
12 Duodecimal 7175654
16 Hexadecimal 1451860
20 Vigesimal 6d33c0
36 Base36 conds

Cryptographic Hash Functions

md5 35d925ad91df60d7f515b6f7f7b95ffb
sha1 00f5bb5b02bb7f2bb4374372cd676ce3f1f75644
sha256 97982168a54f7ea1ecf0c69a313d9685e0ad93ed7d69684a9bf38945e555f549
sha512 8c6a1d072ccfb536d80bea2163fcaf7caf4b1b56d51023d37f40ee6ee62572e56937e8e42988596ff17d4407ba64846e18c20f0509d7e4da5d0c8cfe7f330089
ripemd-160 fcfaca410aeb7a09193b454059e5ca3b220df9f8

21305440 as geometric shapes

Circle

Radius = n
Diameter 42610880
Circumference 133866027.571
Area 1.4260373092261E+15

Sphere

Radius = n
Volume 4.0509803105971E+22
Surface area 5.7041492369044E+15
Circumference 133866027.571

Square

Length = n
Perimeter 85221760
Area 453921773593600
Diagonal 30130442.200326

Cube

Length = n
Surface area 2723530641561600
Volume 9.671003111992E+21
Space diagonal 36902104.55761

Equilateral Triangle

Length = n
Perimeter 63916320
Area 1.9655389363147E+14
Altitude 18451052.278805

Triangular Pyramid

Length = n
Surface area 1.9655389363147E+14
Volume 1.1397386468943E+21
Height 10043480.733442