21017923 (number)

21017923 is an odd 8-digits composite number following 21017922 and preceding 21017924. In scientific notation, it is written as 2.1017923 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 21001120 positive integers (up to 21017923) that are relatively prime to 21017923.

Interesting facts

Basic properties

Name

Name twenty-one million seventeen thousand nine hundred twenty-three

Notation

Scientific notation 2.1017923 × 10^7
Engineering notation 2.1017923 × 10^6

Prime Factorization of 21017923

Prime Factorization 1361 × 15443

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21017923
Product of the distinct prime numbers

The prime factorization of 21017923 is 1361 × 15443. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 62, 81, 798, 122, 7897, 2813, 14609, 10551, 801296, 265200, 1488718, 6728465, 76504212, 54081439, 835502044, 45280245, 7439199287, 7061633351

Basic calculations (n = 21017923)

Multiplication

n×y
n×2 42035846
n×3 63053769
n×4 84071692
n×5 105089615

Division

n÷y
n÷2 10508961.5
n÷3 7005974.3333333
n÷3 5254480.75
n÷5 4203584.6

Exponentiation

ny
n2 441753087233929
n3 9.284732372495E+21
n4 1.9514579008071E+29
n5 4.1015591896905E+36

Nth Root

y√n
2√n 4584.5308375013
3√n 275.97088452233
4√n 67.709163615431
5√n 29.1419064247

Divisors of 21017923

1, 1361, 15443, 21017923

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 -21017922
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 21017923 can be divided by 4 positive divisors. The sum of these divisors (counting 21017923) is 1, the average is 0.25.

Base conversion 21017923

Base System Value
2 Binary 1010000001011010101000011
3 Ternary 1110112211011121
4 Quaternary 1100023111003
5 Quinary 20340033143
6 Senary 2030253111
8 Octal 120132503
10 Decimal 21017923
12 Duodecimal 7057197
16 Hexadecimal 140b543
20 Vigesimal 6b74g3
36 Base36 cihj7

Cryptographic Hash Functions

md5 2629ab5e58ba065e1f06cb770e3e3ef5
sha1 0146c2118783af6edc9f781d39c7dcf3c9791075
sha256 e6329c1536286e403e971746504dad1a560281bc322b427b860106f9d041b767
sha512 ab2e6bbc538cf361f222f429c7c64ad09c6e75540e60c82f00d05d66699d518b014a277113d395ae57ba83dc71f42eeb88bf58ae634f7397771581e0fd60dd42
ripemd-160 c7ba1744cbc026fceb72641e34538a5d71583083

21017923 as geometric shapes

Circle

Radius = n
Diameter 42035846
Circumference 132059504.98103
Area 1.3878082535547E+15

Sphere

Radius = n
Volume 3.889179601597E+22
Surface area 5.5512330142189E+15
Circumference 132059504.98103

Square

Length = n
Perimeter 84071692
Area 441753087233929
Diagonal 29723831.759513

Cube

Length = n
Surface area 2650518523403574
Volume 9.284732372495E+21
Space diagonal 36404110.50557

Equilateral Triangle

Length = n
Perimeter 63053769
Area 1.9128469787239E+14
Altitude 18202055.252785

Triangular Pyramid

Length = n
Surface area 1.9128469787239E+14
Volume 1.0942162036822E+21
Height 9907943.9198378