28305990 (number)

28305990 is an even 8-digits composite number following 28305989 and preceding 28305991. In scientific notation, it is written as 2.8305990 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 7361280 positive integers (up to 28305990) that are relatively prime to 28305990.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred five thousand nine hundred ninety

Notation

Scientific notation 2.8305990 × 10^7
Engineering notation 2.8305990 × 10^6

Prime Factorization of 28305990

Prime Factorization 2 × 27 × 5 × 41 × 2557

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28305990
Product of the distinct prime numbers

The prime factorization of 28305990 is 2 × 27 × 5 × 41 × 2557. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 6, 13, 65, 830, 680, 8679, 8832, 42665, 49565, 689201, 515616, 3735341, 7576471, 60703650, 4918428, 91579354, 247068329, 5827644097, 8579689678

Basic calculations (n = 28305990)

Multiplication

n×y
n×2 56611980
n×3 84917970
n×4 113223960
n×5 141529950

Division

n÷y
n÷2 14152995
n÷3 9435330
n÷3 7076497.5
n÷5 5661198

Exponentiation

ny
n2 801229069880100
n3 2.2679582039735E+22
n4 6.4196802242093E+29
n5 1.8171540422967E+37

Nth Root

y√n
2√n 5320.3373953162
3√n 304.76104189286
4√n 72.940642959301
5√n 30.929697305092

Divisors of 28305990

1, 2, 5, 10, 27, 41, 54, 82, 135, 205, 270, 410, 1107, 2214, 2557, 5114, 5535, 11070, 12785, 25570, 69039, 104837, 138078, 209674, 345195, 524185, 690390, 1048370, 2830599, 5661198, 14152995, 28305990

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28305989
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28305990 can be divided by 32 positive divisors. The sum of these divisors (counting 28305990) is 1, the average is 0.03125.

Base conversion 28305990

Base System Value
2 Binary 1101011111110101001000110
3 Ternary 1222021002112000
4 Quaternary 1223332221012
5 Quinary 24221242430
6 Senary 2450410130
8 Octal 153765106
10 Decimal 28305990
12 Duodecimal 9590946
16 Hexadecimal 1afea46
20 Vigesimal 8gi4ja
36 Base36 gup1i

Cryptographic Hash Functions

md5 0db8cdb38b69700938086250f187a4ad
sha1 499b13bf46c506c9387d516f51de38d4677fe136
sha256 2c02949836fb7666fec5e062b240b309e64e87a5b5f66f4689ee8d22f9b5c5ce
sha512 1eab25919b13e306803fd0bba0a0c9b7800106b397b0ba5fb3b7889e656e514302eb40049467c05441cd3810eae825a5577b7d5416db2038251fe7fec1535963
ripemd-160 c31af93e7200aa431103c5dbac7c5c0c2a1c4f01

28305990 as geometric shapes

Circle

Radius = n
Diameter 56611980
Circumference 177851780.47317
Area 2.5171353597779E+15

Sphere

Radius = n
Volume 9.5000011096693E+22
Surface area 1.0068541439112E+16
Circumference 177851780.47317

Square

Length = n
Perimeter 113223960
Area 801229069880100
Diagonal 40030714.954397

Cube

Length = n
Surface area 4807374419280600
Volume 2.2679582039735E+22
Space diagonal 49027412.838537

Equilateral Triangle

Length = n
Perimeter 84917970
Area 3.4694236438337E+14
Altitude 24513706.419268

Triangular Pyramid

Length = n
Surface area 3.4694236438337E+14
Volume 2.6728143757956E+21
Height 13343571.651466