28128538 (number)

28128538 is an even 8-digits composite number following 28128537 and preceding 28128539. In scientific notation, it is written as 2.8128538 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 14053920 positive integers (up to 28128538) that are relatively prime to 28128538.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred twenty-eight thousand five hundred thirty-eight

Notation

Scientific notation 2.8128538 × 10^7
Engineering notation 2.8128538 × 10^6

Prime Factorization of 28128538

Prime Factorization 2 × 1609 × 8741

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28128538
Product of the distinct prime numbers

The prime factorization of 28128538 is 2 × 1609 × 8741. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 61, 29, 19, 410, 1418, 8160, 50868, 68102, 608797, 832461, 1171177, 7214510, 12948878, 1152094, 42352956, 793741697, 7590722042, 5648971814

Basic calculations (n = 28128538)

Multiplication

n×y
n×2 56257076
n×3 84385614
n×4 112514152
n×5 140642690

Division

n÷y
n÷2 14064269
n÷3 9376179.3333333
n÷3 7032134.5
n÷5 5625707.6

Exponentiation

ny
n2 791214650017444
n3 2.2255711349172E+22
n4 6.2602062240223E+29
n5 1.7609044866025E+37

Nth Root

y√n
2√n 5303.6344142484
3√n 304.12285114365
4√n 72.826055874587
5√n 30.89081965528

Divisors of 28128538

1, 2, 1609, 3218, 8741, 17482, 14064269, 28128538

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 -28128537
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 28128538 can be divided by 8 positive divisors. The sum of these divisors (counting 28128538) is 1, the average is 0.125.

Base conversion 28128538

Base System Value
2 Binary 1101011010011010100011010
3 Ternary 1221221002002201
4 Quaternary 1223103110122
5 Quinary 24200103123
6 Senary 2442520414
8 Octal 153232432
10 Decimal 28128538
12 Duodecimal 950610a
16 Hexadecimal 1ad351a
20 Vigesimal 8fg16i
36 Base36 gqw4a

Cryptographic Hash Functions

md5 617c3efa4edd9bf57f85fe4f5eaeaf76
sha1 0e2ddcb183571e2bd157fe9ec740e7c6b39b6666
sha256 18062c8d4d3c77008ace19b3c8644a804767e6e80481e3a51cd9aeda87dc06fc
sha512 1c2e30c6ae5aabeacaaf6fdf533dc925c9cc905bb0384e9d09e93261a34074f25e8d7e670daea367db1fcb97190a26c90f8e0769543fec519969b05be6eb890d
ripemd-160 0fd00605ee6ea1ec740c3e649380e34915a95f00

28128538 as geometric shapes

Circle

Radius = n
Diameter 56257076
Circumference 176736816.67404
Area 2.4856741319074E+15

Sphere

Radius = n
Volume 9.3224505699967E+22
Surface area 9.9426965276297E+15
Circumference 176736816.67404

Square

Length = n
Perimeter 112514152
Area 791214650017444
Diagonal 39779759.929327

Cube

Length = n
Surface area 4747287900104664
Volume 2.2255711349172E+22
Space diagonal 48720056.958632

Equilateral Triangle

Length = n
Perimeter 84385614
Area 3.4260599338076E+14
Altitude 24360028.479316

Triangular Pyramid

Length = n
Surface area 3.4260599338076E+14
Volume 2.622860735855E+21
Height 13259919.976442