28438290 (number)

28438290 is an even 8-digits composite number following 28438289 and preceding 28438291. In scientific notation, it is written as 2.8438290 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 7332768 positive integers (up to 28438290) that are relatively prime to 28438290.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred thirty-eight thousand two hundred ninety

Notation

Scientific notation 2.8438290 × 10^7
Engineering notation 2.8438290 × 10^6

Prime Factorization of 28438290

Prime Factorization 2 × 45 × 81 × 47 × 83

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28438290
Product of the distinct prime numbers

The prime factorization of 28438290 is 2 × 45 × 81 × 47 × 83. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 9, 5, 100, 63, 711, 2447, 6791, 41488, 67313, 664982, 449853, 1475442, 9482061, 14872817, 57893480, 850005003, 195999642, 301203224, 948211811

Basic calculations (n = 28438290)

Multiplication

n×y
n×2 56876580
n×3 85314870
n×4 113753160
n×5 142191450

Division

n÷y
n÷2 14219145
n÷3 9479430
n÷3 7109572.5
n÷5 5687658

Exponentiation

ny
n2 808736338124100
n3 2.2999078517111E+22
n4 6.5405446460238E+29
n5 1.8600190540157E+37

Nth Root

y√n
2√n 5332.7563229534
3√n 305.23511388387
4√n 73.025723707153
5√n 30.958556002939

Divisors of 28438290

1, 2, 45, 47, 81, 83, 90, 94, 162, 166, 2115, 3645, 3735, 3807, 3901, 4230, 6723, 7290, 7470, 7614, 7802, 13446, 171315, 175545, 302535, 315981, 342630, 351090, 605070, 631962, 14219145, 28438290

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 -28438289
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 28438290 can be divided by 32 positive divisors. The sum of these divisors (counting 28438290) is 1, the average is 0.03125.

Base conversion 28438290

Base System Value
2 Binary 1101100011110111100010010
3 Ternary 1222111211000000
4 Quaternary 1230132330102
5 Quinary 24240011130
6 Senary 2453310430
8 Octal 154367422
10 Decimal 28438290
12 Duodecimal 9635416
16 Hexadecimal 1b1ef12
20 Vigesimal 8hefea
36 Base36 gxj4i

Cryptographic Hash Functions

md5 ccd7e2ad3915947b90fe6503e6c494df
sha1 4b7860fa06fe9df519806d482d6dafcf100db8be
sha256 efb22d755402d667f3758301ae86f91c7b08da6664d1bc0b5a8134819ad1a2de
sha512 a874aa98459b3191ddb572abe3cab4dcdafd237f2ed9fcd1bc7adb1e19bd9d0dda0fbf0ee74153374dc85e6d95f05788ef2de0cda562427809160138589e1862
ripemd-160 46dd0302533fc72a819f24f7489566d93c55b51b

28438290 as geometric shapes

Circle

Radius = n
Diameter 56876580
Circumference 178683045.88931
Area 2.5407201385418E+15

Sphere

Radius = n
Volume 9.6338314811589E+22
Surface area 1.0162880554167E+16
Circumference 178683045.88931

Square

Length = n
Perimeter 113753160
Area 808736338124100
Diagonal 40217815.408699

Cube

Length = n
Surface area 4852418028744600
Volume 2.2999078517111E+22
Space diagonal 49256563.160378

Equilateral Triangle

Length = n
Perimeter 85314870
Area 3.5019310688954E+14
Altitude 24628281.580189

Triangular Pyramid

Length = n
Surface area 3.5019310688954E+14
Volume 2.7104673967485E+21
Height 13405938.469566