28131709 (number)

28131709 is an odd 8-digits composite number following 28131708 and preceding 28131710. In scientific notation, it is written as 2.8131709 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 27462000 positive integers (up to 28131709) that are relatively prime to 28131709.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred thirty-one thousand seven hundred nine

Notation

Scientific notation 2.8131709 × 10^7
Engineering notation 2.8131709 × 10^6

Prime Factorization of 28131709

Prime Factorization 47 × 751 × 797

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28131709
Product of the distinct prime numbers

The prime factorization of 28131709 is 47 × 751 × 797. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28131709)

Multiplication

n×y
n×2 56263418
n×3 84395127
n×4 112526836
n×5 140658545

Division

n÷y
n÷2 14065854.5
n÷3 9377236.3333333
n÷3 7032927.25
n÷5 5626341.8

Exponentiation

ny
n2 791393051260681
n3 2.2263239022688E+22
n4 6.2630296158369E+29
n5 1.7618972661111E+37

Nth Root

y√n
2√n 5303.9333517683
3√n 304.13427888919
4√n 72.828108253395
5√n 30.891516103651

Divisors of 28131709

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 -28131708
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 28131709 can be divided by 8 positive divisors. The sum of these divisors (counting 28131709) is 1, the average is 0.125.

Base conversion 28131709

Base System Value
2 Binary 1101011010100000101111101
3 Ternary 1221221020110011
4 Quaternary 1223110011331
5 Quinary 24200203314
6 Senary 2442543221
8 Octal 153240575
10 Decimal 28131709
12 Duodecimal 9507b11
16 Hexadecimal 1ad417d
20 Vigesimal 8fg959
36 Base36 gqykd

Cryptographic Hash Functions

md5 b731e8e4b6b8e2f82b595a4203c22086
sha1 b2f71c3e07e302bb8ee577e94abac61e233a21c9
sha256 73592bfb81070a583a84d82fa3d81be7bf349c891c85e5a22d01fe4cf2311503
sha512 b662b1a1df096beeab7b31ad582ad337b78af171414227c50c1d2e5e5e420eeaace9648155114a5178a5e09fb8ed82eaafa64c723644da109b452b8ec79f8737
ripemd-160 c55e8b6b87809228d4b5525fa2a632e7d7476618

28131709 as geometric shapes

Circle

Radius = n
Diameter 56263418
Circumference 176756740.65465
Area 2.4862345959426E+15

Sphere

Radius = n
Volume 9.3256037545052E+22
Surface area 9.9449383837703E+15
Circumference 176756740.65465

Square

Length = n
Perimeter 112526836
Area 791393051260681
Diagonal 39784244.400533

Cube

Length = n
Surface area 4748358307564086
Volume 2.2263239022688E+22
Space diagonal 48725549.291743

Equilateral Triangle

Length = n
Perimeter 84395127
Area 3.4268324338512E+14
Altitude 24362774.645871

Triangular Pyramid

Length = n
Surface area 3.4268324338512E+14
Volume 2.6237478806866E+21
Height 13261414.800178