21508769 (number)

21508769 is an odd 8-digits composite number following 21508768 and preceding 21508770. In scientific notation, it is written as 2.1508769 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 21204576 positive integers (up to 21508769) that are relatively prime to 21508769.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred eight thousand seven hundred sixty-nine

Notation

Scientific notation 2.1508769 × 10^7
Engineering notation 2.1508769 × 10^6

Prime Factorization of 21508769

Prime Factorization 569 × 103 × 367

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21508769
Product of the distinct prime numbers

The prime factorization of 21508769 is 569 × 103 × 367. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21508769)

Multiplication

n×y
n×2 43017538
n×3 64526307
n×4 86035076
n×5 107543845

Division

n÷y
n÷2 10754384.5
n÷3 7169589.6666667
n÷3 5377192.25
n÷5 4301753.8

Exponentiation

ny
n2 462627143895361
n3 9.9505403711751E+21
n4 2.1402387426878E+29
n5 4.6033900721322E+36

Nth Root

y√n
2√n 4637.754736939
3√n 278.10268707922
4√n 68.101062671143
5√n 29.276766641419

Divisors of 21508769

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 -21508768
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 21508769 can be divided by 8 positive divisors. The sum of these divisors (counting 21508769) is 1, the average is 0.125.

Base conversion 21508769

Base System Value
2 Binary 1010010000011001010100001
3 Ternary 1111110202111002
4 Quaternary 1102003022201
5 Quinary 21001240034
6 Senary 2045001345
8 Octal 122031241
10 Decimal 21508769
12 Duodecimal 7253255
16 Hexadecimal 14832a1
20 Vigesimal 6e8bi9
36 Base36 ct09t

Cryptographic Hash Functions

md5 a08ceaf0932b08e028a5cd154b97880a
sha1 6d8c4d37f94a2a5716f72a42f32b36f3aa101ea2
sha256 3507c2ddefce40694575777a7283656b785a12ff55479b662c99770a36a84308
sha512 d1b0ca5705900dd89fe871ee15003dc6004f713a6800d4d391151c91be7896ca196c24b5ccaf4e655395ed8fb55099346949d76f344b8853cd22d8a3c683a423
ripemd-160 9eb122df389cfc062cde2ccfb7551d9a63693289

21508769 as geometric shapes

Circle

Radius = n
Diameter 43017538
Circumference 135143581.35632
Area 1.4533860366129E+15

Sphere

Radius = n
Volume 4.168072603911E+22
Surface area 5.8135441464516E+15
Circumference 135143581.35632

Square

Length = n
Perimeter 86035076
Area 462627143895361
Diagonal 30417992.82975

Cube

Length = n
Surface area 2775762863372166
Volume 9.9505403711751E+21
Space diagonal 37254280.716262

Equilateral Triangle

Length = n
Perimeter 64526307
Area 2.0032342954681E+14
Altitude 18627140.358131

Triangular Pyramid

Length = n
Surface area 2.0032342954681E+14
Volume 1.1726824288214E+21
Height 10139330.94325