28723930 (number)

28723930 is an even 8-digits composite number following 28723929 and preceding 28723931. In scientific notation, it is written as 2.8723930 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 11489568 positive integers (up to 28723930) that are relatively prime to 28723930.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred twenty-three thousand nine hundred thirty

Notation

Scientific notation 2.8723930 × 10^7
Engineering notation 2.8723930 × 10^6

Prime Factorization of 28723930

Prime Factorization 2 × 5 × 2872393

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28723930
Product of the distinct prime numbers

The prime factorization of 28723930 is 2 × 5 × 2872393. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28723930)

Multiplication

n×y
n×2 57447860
n×3 86171790
n×4 114895720
n×5 143619650

Division

n÷y
n÷2 14361965
n÷3 9574643.3333333
n÷3 7180982.5
n÷5 5744786

Exponentiation

ny
n2 825064154644900
n3 2.3699085023529E+22
n4 6.807308592799E+29
n5 1.9553265550796E+37

Nth Root

y√n
2√n 5359.4710559905
3√n 306.2536592649
4√n 73.208408369466
5√n 31.020498448756

Divisors of 28723930

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 -28723929
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 28723930 can be divided by 8 positive divisors. The sum of these divisors (counting 28723930) is 1, the average is 0.125.

Base conversion 28723930

Base System Value
2 Binary 1101101100100101011011010
3 Ternary 2000001022211021
4 Quaternary 1231210223122
5 Quinary 24323131210
6 Senary 2503353054
8 Octal 155445332
10 Decimal 28723930
12 Duodecimal 975278a
16 Hexadecimal 1b64ada
20 Vigesimal 8ja9ga
36 Base36 h3niy

Cryptographic Hash Functions

md5 9fae94d3acb10d62a0f3b42c263f8ead
sha1 42f56bea20472f4421189b32bb0c45d6c4dd2fd8
sha256 de19c26995c76052e82b74ac76961e146b07e7a238292d72a9c048e08fd90813
sha512 3b8edbeadd3fd2892509afd21702acd4c1d6d8c86d23466562ed09893a37bc2b41f1a5e1d6b5972ad11d616b4a2477ab079e61a5c93b6535791a4b3fd34bbc78
ripemd-160 72c92294f2deb0f62b8a73879ff2db7bfb7efb14

28723930 as geometric shapes

Circle

Radius = n
Diameter 57447860
Circumference 180477774.94045
Area 2.5920154869727E+15

Sphere

Radius = n
Volume 9.9270495208959E+22
Surface area 1.0368061947891E+16
Circumference 180477774.94045

Square

Length = n
Perimeter 114895720
Area 825064154644900
Diagonal 40621771.370655

Cube

Length = n
Surface area 4950384927869400
Volume 2.3699085023529E+22
Space diagonal 49751306.153052

Equilateral Triangle

Length = n
Perimeter 86171790
Area 3.5726325883721E+14
Altitude 24875653.076526

Triangular Pyramid

Length = n
Surface area 3.5726325883721E+14
Volume 2.7929639546757E+21
Height 13540590.456885