28931390 (number)

28931390 is an even 8-digits composite number following 28931389 and preceding 28931391. In scientific notation, it is written as 2.8931390 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 11469696 positive integers (up to 28931390) that are relatively prime to 28931390.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand three hundred ninety

Notation

Scientific notation 2.8931390 × 10^7
Engineering notation 2.8931390 × 10^6

Prime Factorization of 28931390

Prime Factorization 2 × 5 × 113 × 25603

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931390
Product of the distinct prime numbers

The prime factorization of 28931390 is 2 × 5 × 113 × 25603. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 58, 60, 458, 816, 7980, 925, 40429, 17793, 223611, 70572, 1350947, 438036, 49117624, 96488184, 291364068, 500847571, 5006931493, 2406108709

Basic calculations (n = 28931390)

Multiplication

n×y
n×2 57862780
n×3 86794170
n×4 115725560
n×5 144656950

Division

n÷y
n÷2 14465695
n÷3 9643796.6666667
n÷3 7232847.5
n÷5 5786278

Exponentiation

ny
n2 837025327332100
n3 2.4216306184923E+22
n4 7.0061139859541E+29
n5 2.0269661611209E+37

Nth Root

y√n
2√n 5378.7907562946
3√n 306.98920198133
4√n 73.340239679828
5√n 31.065178967408

Divisors of 28931390

1, 2, 5, 10, 113, 226, 565, 1130, 25603, 51206, 128015, 256030, 2893139, 5786278, 14465695, 28931390

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 -28931389
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 28931390 can be divided by 16 positive divisors. The sum of these divisors (counting 28931390) is 1, the average is 0.0625.

Base conversion 28931390

Base System Value
2 Binary 1101110010111010100111110
3 Ternary 2000102212101222
4 Quaternary 1232113110332
5 Quinary 24401301030
6 Senary 2512033342
8 Octal 156272476
10 Decimal 28931390
12 Duodecimal 9832852
16 Hexadecimal 1b9753e
20 Vigesimal 90g89a
36 Base36 h83lq

Cryptographic Hash Functions

md5 a8b279880ea7f4b1eaa57ac83e53166d
sha1 f38d59c46401f1417523fbeee80ea126b581dd68
sha256 61332adb9eacee0bb95063a8e70de37529d8d871c6f681c5ceabc7510af1c0af
sha512 50e41cdd9454f349826f73e7b324cb71342905c106ecd80c416bc2deafda9bc9ea688519b1e4e371065bd865cf49bdefe9908b30b817a92bb4227ff4a86d35bb
ripemd-160 34d0dc1f31888dfe5f1e3ac54c4ffba31737b252

28931390 as geometric shapes

Circle

Radius = n
Diameter 57862780
Circumference 181781284.56428
Area 2.6295926192151E+15

Sphere

Radius = n
Volume 1.0143702614351E+23
Surface area 1.051837047686E+16
Circumference 181781284.56428

Square

Length = n
Perimeter 115725560
Area 837025327332100
Diagonal 40915164.116305

Cube

Length = n
Surface area 5022151963992600
Volume 2.4216306184923E+22
Space diagonal 50110637.41359

Equilateral Triangle

Length = n
Perimeter 86794170
Area 3.6244259854029E+14
Altitude 25055318.706795

Triangular Pyramid

Length = n
Surface area 3.6244259854029E+14
Volume 2.8539190531081E+21
Height 13638388.038768