28661531 (number)

28661531 is an odd 8-digits composite number following 28661530 and preceding 28661532. In scientific notation, it is written as 2.8661531 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 28503000 positive integers (up to 28661531) that are relatively prime to 28661531.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8661531 × 10^7
Engineering notation 2.8661531 × 10^6

Prime Factorization of 28661531

Prime Factorization 181 × 158351

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28661531
Product of the distinct prime numbers

The prime factorization of 28661531 is 181 × 158351. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28661531)

Multiplication

n×y
n×2 57323062
n×3 85984593
n×4 114646124
n×5 143307655

Division

n÷y
n÷2 14330765.5
n÷3 9553843.6666667
n÷3 7165382.75
n÷5 5732306.2

Exponentiation

ny
n2 821483359263961
n3 2.3544970767528E+22
n4 6.748349095476E+29
n5 1.9341801679881E+37

Nth Root

y√n
2√n 5353.6465142929
3√n 306.03173307828
4√n 73.168617004101
5√n 31.007009122917

Divisors of 28661531

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 -28661530
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 28661531 can be divided by 4 positive divisors. The sum of these divisors (counting 28661531) is 1, the average is 0.25.

Base conversion 28661531

Base System Value
2 Binary 1101101010101011100011011
3 Ternary 1222221011020012
4 Quaternary 1231111130123
5 Quinary 24314132111
6 Senary 2502152135
8 Octal 155253433
10 Decimal 28661531
12 Duodecimal 972264b
16 Hexadecimal 1b5571b
20 Vigesimal 8j2dgb
36 Base36 h2bdn

Cryptographic Hash Functions

md5 d13bd014f5fcc5c5338c7a0e1b35aff4
sha1 e671e9cc2dc939d52a37f43a222002163971fbd8
sha256 f1ceb8a05688bc24d3152f8c3f6789fb75a69759e13692ce5e25ed98f91e1612
sha512 48295f8c0fc70c686ac66e05674c0b97ab04ea14bcede8f9bd54cdfd7e6714f8365d6628721a212f77c122b334cd88dba27b6aace37bd00950ae9b8967919a61
ripemd-160 e922c7c6e9528b6d3c497d5bc705a1447b4c3aa5

28661531 as geometric shapes

Circle

Radius = n
Diameter 57323062
Circumference 180085710.46047
Area 2.5807660865099E+15

Sphere

Radius = n
Volume 9.8624942923004E+22
Surface area 1.032306434604E+16
Circumference 180085710.46047

Square

Length = n
Perimeter 114646124
Area 821483359263961
Diagonal 40533525.858577

Cube

Length = n
Surface area 4928900155583766
Volume 2.3544970767528E+22
Space diagonal 49643227.91471

Equilateral Triangle

Length = n
Perimeter 85984593
Area 3.5571272895438E+14
Altitude 24821613.957355

Triangular Pyramid

Length = n
Surface area 3.5571272895438E+14
Volume 2.7748014154264E+21
Height 13511175.286192