28911025 (number)

28911025 is an odd 8-digits composite number following 28911024 and preceding 28911026. In scientific notation, it is written as 2.8911025 × 10^7. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 19406400 positive integers (up to 28911025) that are relatively prime to 28911025.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred eleven thousand twenty-five

Notation

Scientific notation 2.8911025 × 10^7
Engineering notation 2.8911025 × 10^6

Prime Factorization of 28911025

Prime Factorization 25 × 143 × 8087

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28911025
Product of the distinct prime numbers

The prime factorization of 28911025 is 25 × 143 × 8087. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28911025)

Multiplication

n×y
n×2 57822050
n×3 86733075
n×4 115644100
n×5 144555125

Division

n÷y
n÷2 14455512.5
n÷3 9637008.3333333
n÷3 7227756.25
n÷5 5782205

Exponentiation

ny
n2 835847366550625
n3 2.4165204110529E+22
n4 6.9864082016961E+29
n5 2.0198422217944E+37

Nth Root

y√n
2√n 5376.8973395444
3√n 306.9171544858
4√n 73.32733009966
5√n 31.060804337822

Divisors of 28911025

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 -28911024
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 28911025 can be divided by 8 positive divisors. The sum of these divisors (counting 28911025) is 1, the average is 0.125.

Base conversion 28911025

Base System Value
2 Binary 1101110010010010110110001
3 Ternary 2000101211110201
4 Quaternary 1232102112301
5 Quinary 24400123100
6 Senary 2511355201
8 Octal 156222661
10 Decimal 28911025
12 Duodecimal 9822b01
16 Hexadecimal 1b925b1
20 Vigesimal 90dhb5
36 Base36 h7nw1

Cryptographic Hash Functions

md5 2459eaf074552b7234f779f4e3c3d493
sha1 a727abeddb2787bdcf7abcfceb68928f36487813
sha256 9f487ed5f279a64a11e2d4d5349c51e4f16e4326f531da7eebce8565751704df
sha512 f0a5d63c1ac43852ae25582b200996d2a2e2fa842f4fb6bd553378adc182e15e5900714f9fc242b17c9306890627f53c549f7b684f0e985af072ab361af43aef
ripemd-160 484faa30685b5e7ea08438a2e90c816109a77d34

28911025 as geometric shapes

Circle

Radius = n
Diameter 57822050
Circumference 181653327.4955
Area 2.6258919462778E+15

Sphere

Radius = n
Volume 1.0122297027485E+23
Surface area 1.0503567785111E+16
Circumference 181653327.4955

Square

Length = n
Perimeter 115644100
Area 835847366550625
Diagonal 40886363.657108

Cube

Length = n
Surface area 5015084199303750
Volume 2.4165204110529E+22
Space diagonal 50075364.198894

Equilateral Triangle

Length = n
Perimeter 86733075
Area 3.6193252655958E+14
Altitude 25037682.099447

Triangular Pyramid

Length = n
Surface area 3.6193252655958E+14
Volume 2.8478966158854E+21
Height 13628787.885703