21742561 (number)

21742561 is an odd 8-digits composite number following 21742560 and preceding 21742562. In scientific notation, it is written as 2.1742561 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 21240960 positive integers (up to 21742561) that are relatively prime to 21742561.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred forty-two thousand five hundred sixty-one

Notation

Scientific notation 2.1742561 × 10^7
Engineering notation 2.1742561 × 10^6

Prime Factorization of 21742561

Prime Factorization 53 × 277 × 1481

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21742561
Product of the distinct prime numbers

The prime factorization of 21742561 is 53 × 277 × 1481. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21742561)

Multiplication

n×y
n×2 43485122
n×3 65227683
n×4 86970244
n×5 108712805

Division

n÷y
n÷2 10871280.5
n÷3 7247520.3333333
n÷3 5435640.25
n÷5 4348512.2

Exponentiation

ny
n2 472738958838721
n3 1.0278555649627E+22
n4 2.2348212320392E+29
n5 4.8590736961707E+36

Nth Root

y√n
2√n 4662.8919138234
3√n 279.10668102509
4√n 68.285371155347
5√n 29.340137138022

Divisors of 21742561

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 -21742560
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 21742561 can be divided by 8 positive divisors. The sum of these divisors (counting 21742561) is 1, the average is 0.125.

Base conversion 21742561

Base System Value
2 Binary 1010010111100001111100001
3 Ternary 1111220122012001
4 Quaternary 1102330033201
5 Quinary 21031230221
6 Senary 2054004001
8 Octal 122741741
10 Decimal 21742561
12 Duodecimal 7346601
16 Hexadecimal 14bc3e1
20 Vigesimal 6fhg81
36 Base36 cy0o1

Cryptographic Hash Functions

md5 b43809f77d8f02899c4a0ff1460d68a9
sha1 849c4665433adf32c928923b788633c6b67e75f8
sha256 011b15e3bd386c3686e6b7716d8361408355c50b0f28c3ece832ed78e06c657c
sha512 82f2dece603e23d04017a4c9780dd57ad999462ff2cb7f1a2e66d67227844967f1f56649741379e8035ddd21c6f8c7986b807b873e0bb756470c54bba4b35bec
ripemd-160 d9b1cc63f3ac419d812f9bc43b2341eac7c15d3b

21742561 as geometric shapes

Circle

Radius = n
Diameter 43485122
Circumference 136612539.81566
Area 1.4851532401534E+15

Sphere

Radius = n
Volume 4.3054713224511E+22
Surface area 5.9406129606137E+15
Circumference 136612539.81566

Square

Length = n
Perimeter 86970244
Area 472738958838721
Diagonal 30748624.646924

Cube

Length = n
Surface area 2836433753032326
Volume 1.0278555649627E+22
Space diagonal 37659220.338666

Equilateral Triangle

Length = n
Perimeter 65227683
Area 2.0470197385647E+14
Altitude 18829610.169333

Triangular Pyramid

Length = n
Surface area 2.0470197385647E+14
Volume 1.2113394001091E+21
Height 10249541.548975