28909428 (number)

28909428 is an even 8-digits composite number following 28909427 and preceding 28909429. In scientific notation, it is written as 2.8909428 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 24 positive divisors. There are 9250560 positive integers (up to 28909428) that are relatively prime to 28909428.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred nine thousand four hundred twenty-eight

Notation

Scientific notation 2.8909428 × 10^7
Engineering notation 2.8909428 × 10^6

Prime Factorization of 28909428

Prime Factorization 2 × 2 × 123 × 67 × 877

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14454714
Product of the distinct prime numbers

The prime factorization of 28909428 is 2 × 2 × 123 × 67 × 877. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 2, 18, 57, 557, 555, 5448, 6927, 25103, 20750, 615971, 996345, 3970755, 533144, 18238299, 10622323, 698575590, 795942013, 6653473861, 4822786488

Basic calculations (n = 28909428)

Multiplication

n×y
n×2 57818856
n×3 86728284
n×4 115637712
n×5 144547140

Division

n÷y
n÷2 14454714
n÷3 9636476
n÷3 7227357
n÷5 5781885.6

Exponentiation

ny
n2 835755027287184
n3 2.4161199786997E+22
n4 6.984864656358E+29
n5 2.0192844187273E+37

Nth Root

y√n
2√n 5376.7488317756
3√n 306.91150317318
4√n 73.326317456801
5√n 31.060461180147

Divisors of 28909428

1, 2, 4, 67, 123, 134, 246, 268, 492, 877, 1754, 3508, 8241, 16482, 32964, 58759, 107871, 117518, 215742, 235036, 431484, 7227357, 14454714, 28909428

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28909427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28909428 can be divided by 24 positive divisors. The sum of these divisors (counting 28909428) is 1, the average is 0.041666666666667.

Base conversion 28909428

Base System Value
2 Binary 1101110010001111101110100
3 Ternary 2000101202021120
4 Quaternary 1232101331310
5 Quinary 24400100203
6 Senary 2511343540
8 Octal 156217564
10 Decimal 28909428
12 Duodecimal 9821bb0
16 Hexadecimal 1b91f74
20 Vigesimal 90ddb8
36 Base36 h7mno

Cryptographic Hash Functions

md5 a4b39cb5c24ef326647a28add142824f
sha1 f7380241556bc826a411cc9a8bf5b18a6b663746
sha256 7c83e9ef917b97e89a66b577b6b888ff5cbadc91bd471a5bbdeef8c07f4a270b
sha512 101f57d7e88d263fa0e0ff482a7c2cdde0ba74cbd91195e2846faeb8b36b4befaeec295ea40d2b12b51063ada3161b306409c23b497b606ae9c3213593e09039
ripemd-160 ee6fc4ba2de500af6ec2c17f19f60055d781a376

28909428 as geometric shapes

Circle

Radius = n
Diameter 57818856
Circumference 181643293.24857
Area 2.6256018539262E+15

Sphere

Radius = n
Volume 1.0120619700366E+23
Surface area 1.0502407415705E+16
Circumference 181643293.24857

Square

Length = n
Perimeter 115637712
Area 835755027287184
Diagonal 40884105.158049

Cube

Length = n
Surface area 5014530163723104
Volume 2.4161199786997E+22
Space diagonal 50072598.113754

Equilateral Triangle

Length = n
Perimeter 86728284
Area 3.6189254248563E+14
Altitude 25036299.056877

Triangular Pyramid

Length = n
Surface area 3.6189254248563E+14
Volume 2.8474247018314E+21
Height 13628035.052683