21492729 (number)

21492729 is an odd 8-digits composite number following 21492728 and preceding 21492730. In scientific notation, it is written as 2.1492729 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 13985136 positive integers (up to 21492729) that are relatively prime to 21492729.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-two thousand seven hundred twenty-nine

Notation

Scientific notation 2.1492729 × 10^7
Engineering notation 2.1492729 × 10^6

Prime Factorization of 21492729

Prime Factorization 3 × 9 × 7303 × 109

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21492729
Product of the distinct prime numbers

The prime factorization of 21492729 is 3 × 9 × 7303 × 109. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 9, 77, 100, 548, 194, 3129, 8227, 3441, 14349, 167315, 964392, 2858512, 8130214, 47610106, 48184289, 484970650, 324501180, 2836473852, 3082899791

Basic calculations (n = 21492729)

Multiplication

n×y
n×2 42985458
n×3 64478187
n×4 85970916
n×5 107463645

Division

n÷y
n÷2 10746364.5
n÷3 7164243
n÷3 5373182.25
n÷5 4298545.8

Exponentiation

ny
n2 461937399867441
n3 9.9282953503155E+21
n4 2.1338616139629E+29
n5 4.5862509392408E+36

Nth Root

y√n
2√n 4636.0251293538
3√n 278.0335389034
4√n 68.088362657313
5√n 29.27239875333

Divisors of 21492729

1, 3, 9, 27, 109, 327, 981, 2943, 7303, 21909, 65727, 197181, 796027, 2388081, 7164243, 21492729

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21492728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21492729 can be divided by 16 positive divisors. The sum of these divisors (counting 21492729) is 1, the average is 0.0625.

Base conversion 21492729

Base System Value
2 Binary 1010001111111001111111001
3 Ternary 1111102221111000
4 Quaternary 1101333033321
5 Quinary 21000231404
6 Senary 2044355213
8 Octal 121771771
10 Decimal 21492729
12 Duodecimal 7245b09
16 Hexadecimal 147f3f9
20 Vigesimal 6e6bg9
36 Base36 csnw9

Cryptographic Hash Functions

md5 5c7717492f9151614ac21455ef7f4e75
sha1 9574224de9cb8e8d1aeb61857ceaa14482675807
sha256 554cbc8e102d9dccba4a86e23e6993ac170fb09a6b1b281543f9b651706e6bd7
sha512 6047d0299a4f3ac02e9007299853c89b07cb7541b30500fbf2faaf6cee008f1f09999da0fdf55cce50f2f944c4f299685738af62e4549ddcfe4ca07af7b3ae7d
ripemd-160 e902b1db5951f71c281efaa8bf0375dde190f0f0

21492729 as geometric shapes

Circle

Radius = n
Diameter 42985458
Circumference 135042799.06399
Area 1.4512191418419E+15

Sphere

Radius = n
Volume 4.1587546313628E+22
Surface area 5.8048765673677E+15
Circumference 135042799.06399

Square

Length = n
Perimeter 85970916
Area 461937399867441
Diagonal 30395308.84421

Cube

Length = n
Surface area 2771624399204646
Volume 9.9282953503155E+21
Space diagonal 37226498.621309

Equilateral Triangle

Length = n
Perimeter 64478187
Area 2.0002476162167E+14
Altitude 18613249.310655

Triangular Pyramid

Length = n
Surface area 2.0002476162167E+14
Volume 1.1700608279718E+21
Height 10131769.614737