21105428 (number)

21105428 is an even 8-digits composite number following 21105427 and preceding 21105429. In scientific notation, it is written as 2.1105428 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 12 positive divisors. There are 9997272 positive integers (up to 21105428) that are relatively prime to 21105428.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred five thousand four hundred twenty-eight

Notation

Scientific notation 2.1105428 × 10^7
Engineering notation 2.1105428 × 10^6

Prime Factorization of 21105428

Prime Factorization 2 × 2 × 19 × 277703

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10552714
Product of the distinct prime numbers

The prime factorization of 21105428 is 2 × 2 × 19 × 277703. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 10, 63, 23, 560, 894, 5893, 4953, 93208, 55359, 693999, 811811, 4041768, 2494888, 60364142, 30401835, 714249263, 599742853, 1272509542, 3238831404

Basic calculations (n = 21105428)

Multiplication

n×y
n×2 42210856
n×3 63316284
n×4 84421712
n×5 105527140

Division

n÷y
n÷2 10552714
n÷3 7035142.6666667
n÷3 5276357
n÷5 4221085.6

Exponentiation

ny
n2 445439091063184
n3 9.4011826648195E+21
n4 1.984159838472E+29
n5 4.1876542611361E+36

Nth Root

y√n
2√n 4594.0644314158
3√n 276.35334217039
4√n 67.779528114438
5√n 29.166131714483

Divisors of 21105428

1, 2, 4, 19, 38, 76, 277703, 555406, 1110812, 5276357, 10552714, 21105428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21105427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21105428 can be divided by 12 positive divisors. The sum of these divisors (counting 21105428) is 1, the average is 0.083333333333333.

Base conversion 21105428

Base System Value
2 Binary 1010000100000101100010100
3 Ternary 1110201021012112
4 Quaternary 1100200230110
5 Quinary 20400333203
6 Senary 2032210152
8 Octal 120405424
10 Decimal 21105428
12 Duodecimal 7099958
16 Hexadecimal 1420b14
20 Vigesimal 6bi3b8
36 Base36 ckd1w

Cryptographic Hash Functions

md5 516859c9392aff06940f5a16d8b195ae
sha1 7f3c8648735f41de15bd436b8a6d3b6b55be6bd2
sha256 592a186d275048fdde84f27cec239768ddd85aca37c0a96cbd81308e714aa99c
sha512 13cd2a418c15a57392120c86600a183cb751a7d8d6b5cf3e55baed1def29fa1024e27e53475b7273b806e0b0c89050532da16f98f6b56e4f86869086d02d7ba9
ripemd-160 567c7123428e2d910b531db30abb596c07b97b43

21105428 as geometric shapes

Circle

Radius = n
Diameter 42210856
Circumference 132609315.11134
Area 1.3993881761058E+15

Sphere

Radius = n
Volume 3.9379581859803E+22
Surface area 5.5975527044233E+15
Circumference 132609315.11134

Square

Length = n
Perimeter 84421712
Area 445439091063184
Diagonal 29847582.517289

Cube

Length = n
Surface area 2672634546379104
Volume 9.4011826648195E+21
Space diagonal 36555673.611487

Equilateral Triangle

Length = n
Perimeter 63316284
Area 1.9288078434968E+14
Altitude 18277836.805743

Triangular Pyramid

Length = n
Surface area 1.9288078434968E+14
Volume 1.1079400022445E+21
Height 9949194.1724296