28907 (number)

28907 is an odd 5-digits composite number following 28906 and preceding 28908. In scientific notation, it is written as 2.8907 × 10^4. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 28560 positive integers (up to 28907) that are relatively prime to 28907.

Interesting facts

Basic properties

Name

Name twenty-eight thousand nine hundred seven

Notation

Scientific notation 2.8907 × 10^4
Engineering notation 2.8907 × 10^3

Prime Factorization of 28907

Prime Factorization 137 × 211

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28907
Product of the distinct prime numbers

The prime factorization of 28907 is 137 × 211. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 100, 89, 967, 519, 2212, 7414, 48395, 12105, 304805, 968983, 2687272, 9549004, 59906574, 7845628, 918149086, 1138740, 7676290447, 1107525641

Basic calculations (n = 28907)

Multiplication

n×y
n×2 57814
n×3 86721
n×4 115628
n×5 144535

Division

n÷y
n÷2 14453.5
n÷3 9635.6666666667
n÷3 7226.75
n÷5 5781.4

Exponentiation

ny
n2 835614649
n3 24155112658643
n4 698251841623393201
n5 2.0184365985807E+22

Nth Root

y√n
2√n 170.02058698875
3√n 30.690291079757
4√n 13.039194261485
5√n 7.8019040420474

Divisors of 28907

1, 137, 211, 28907

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28906
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28907 can be divided by 4 positive divisors. The sum of these divisors (counting 28907) is 1, the average is 0.25.

Base conversion 28907

Base System Value
2 Binary 111000011101011
3 Ternary 1110122122
4 Quaternary 13003223
5 Quinary 1411112
6 Senary 341455
8 Octal 70353
10 Decimal 28907
12 Duodecimal 1488b
16 Hexadecimal 70eb
20 Vigesimal 3c57
36 Base36 maz

Cryptographic Hash Functions

md5 2d95d0882174e6abcf9ebe52b57a61a1
sha1 99bb6b6f3509c749a37181ed630cc99eb02e9155
sha256 904f166ecb94257ae1e40e1c3a15235f87da5fd00d5180c51ba4a1e10dac744c
sha512 f9ed0714ae321484d60498e6205e95cda44ae1b8a03e288d989ed8ad73bcee78779aeacf3de60ac5bb2f9cf067dfa3e30b01dae86e0a4b38baaebcc67f23cc38
ripemd-160 c957680ca5f967fa628b95c362fe0a7523d950b4

28907 as geometric shapes

Circle

Radius = n
Diameter 57814
Circumference 181628.03767464
Area 2625160842.5304

Sphere

Radius = n
Volume 1.0118069930004E+14
Surface area 10500643370.122
Circumference 181628.03767464

Square

Length = n
Perimeter 115628
Area 835614649
Diagonal 40880.671447519

Cube

Length = n
Surface area 5013687894
Volume 24155112658643
Space diagonal 50068.392694394

Equilateral Triangle

Length = n
Perimeter 86721
Area 361831756.90421
Altitude 25034.196347197

Triangular Pyramid

Length = n
Surface area 361831756.90421
Volume 2846707326875.2
Height 13626.890482506