28931890 (number)

28931890 is an even 8-digits composite number following 28931889 and preceding 28931891. In scientific notation, it is written as 2.8931890 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 10682496 positive integers (up to 28931890) that are relatively prime to 28931890.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931890 × 10^7
Engineering notation 2.8931890 × 10^6

Prime Factorization of 28931890

Prime Factorization 2 × 5 × 13 × 222553

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931890
Product of the distinct prime numbers

The prime factorization of 28931890 is 2 × 5 × 13 × 222553. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 73, 92, 747, 931, 4006, 3216, 58249, 94385, 610675, 585037, 6856886, 6884321, 70029971, 862168, 787236281, 631715223, 2461486900, 484386611

Basic calculations (n = 28931890)

Multiplication

n×y
n×2 57863780
n×3 86795670
n×4 115727560
n×5 144659450

Division

n÷y
n÷2 14465945
n÷3 9643963.3333333
n÷3 7232972.5
n÷5 5786378

Exponentiation

ny
n2 837054258972100
n3 2.4217561744612E+22
n4 7.0065983246333E+29
n5 2.0271413200248E+37

Nth Root

y√n
2√n 5378.8372349421
3√n 306.9909704609
4√n 73.340556549171
5√n 31.065286342008

Divisors of 28931890

1, 2, 5, 10, 13, 26, 65, 130, 222553, 445106, 1112765, 2225530, 2893189, 5786378, 14465945, 28931890

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 -28931889
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 28931890 can be divided by 16 positive divisors. The sum of these divisors (counting 28931890) is 1, the average is 0.0625.

Base conversion 28931890

Base System Value
2 Binary 1101110010111011100110010
3 Ternary 2000102220002111
4 Quaternary 1232113130302
5 Quinary 24401310030
6 Senary 2512035534
8 Octal 156273462
10 Decimal 28931890
12 Duodecimal 9832baa
16 Hexadecimal 1b97732
20 Vigesimal 90g9ea
36 Base36 h83zm

Cryptographic Hash Functions

md5 3856e4f7355ca624f18253400e98c560
sha1 93904a0f1220332e891c567bc2819714f18691a9
sha256 a6033415c42ad9a6d24c2c4280dd73edcd00e586c6c6efc1b4c0f1b44926b7fd
sha512 d260a6416cca161d6cee9fd4d2083febfe3d9145e6978550498cf887145d4b09a29a28a47916c9709f2141cd78da1f5f703d315619894f26960f46677adde705
ripemd-160 a784f7f532af03316012d08b87cd1a0290bab7da

28931890 as geometric shapes

Circle

Radius = n
Diameter 57863780
Circumference 181784426.15694
Area 2.6296835106428E+15

Sphere

Radius = n
Volume 1.0144228541964E+23
Surface area 1.0518734042571E+16
Circumference 181784426.15694

Square

Length = n
Perimeter 115727560
Area 837054258972100
Diagonal 40915871.223087

Cube

Length = n
Surface area 5022325553832600
Volume 2.4217561744612E+22
Space diagonal 50111503.438994

Equilateral Triangle

Length = n
Perimeter 86795670
Area 3.624551263079E+14
Altitude 25055751.719497

Triangular Pyramid

Length = n
Surface area 3.624551263079E+14
Volume 2.8540670222365E+21
Height 13638623.741029