28771749 (number)

28771749 is an odd 8-digits composite number following 28771748 and preceding 28771750. In scientific notation, it is written as 2.8771749 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 18779040 positive integers (up to 28771749) that are relatively prime to 28771749.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred seventy-one thousand seven hundred forty-nine

Notation

Scientific notation 2.8771749 × 10^7
Engineering notation 2.8771749 × 10^6

Prime Factorization of 28771749

Prime Factorization 9 × 109 × 139 × 211

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28771749
Product of the distinct prime numbers

The prime factorization of 28771749 is 9 × 109 × 139 × 211. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 53, 64, 786, 521, 694, 7032, 32412, 91626, 907882, 322419, 4734276, 3838496, 83759747, 43266583, 945522946, 248507555, 4812961146, 6575712843

Basic calculations (n = 28771749)

Multiplication

n×y
n×2 57543498
n×3 86315247
n×4 115086996
n×5 143858745

Division

n÷y
n÷2 14385874.5
n÷3 9590583
n÷3 7192937.25
n÷5 5754349.8

Exponentiation

ny
n2 827813540519001
n3 2.3817643406614E+22
n4 6.852752578666E+29
n5 1.9716567715248E+37

Nth Root

y√n
2√n 5363.9303686756
3√n 306.4235132796
4√n 73.238858324496
5√n 31.030820033637

Divisors of 28771749

1, 9, 109, 139, 211, 981, 1251, 1899, 15151, 22999, 29329, 136359, 206991, 263961, 3196861, 28771749

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28771748
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28771749 can be divided by 16 positive divisors. The sum of these divisors (counting 28771749) is 1, the average is 0.0625.

Base conversion 28771749

Base System Value
2 Binary 1101101110000010110100101
3 Ternary 2000010202102100
4 Quaternary 1231300112211
5 Quinary 24331143444
6 Senary 2504402313
8 Octal 155602645
10 Decimal 28771749
12 Duodecimal 9776399
16 Hexadecimal 1b705a5
20 Vigesimal 8jg979
36 Base36 h4of9

Cryptographic Hash Functions

md5 90a839180ae0cde1086dd05cce456fac
sha1 e450c7527374ecdcbcb16e76026633ed58ad8c96
sha256 279f6c28c39f611d1da9931d60e8256f2a2a0fedcc4f659b7ca684f055287d6e
sha512 bc9b10e5ec8379dcdfc3a84f2ddb4527c380d2a924fda41db994551fd51913cb5989976d0862b7b4d302b3f98797ed7c1f9e8101674ba13d63feddb41b142886
ripemd-160 c4083af1a3730d68c06eb228a899609813a9d9f4

28771749 as geometric shapes

Circle

Radius = n
Diameter 57543498
Circumference 180778230.57866
Area 2.6006529374366E+15

Sphere

Radius = n
Volume 9.976711140272E+22
Surface area 1.0402611749747E+16
Circumference 180778230.57866

Square

Length = n
Perimeter 115086996
Area 827813540519001
Diagonal 40689397.648995

Cube

Length = n
Surface area 4966881243114006
Volume 2.3817643406614E+22
Space diagonal 49834131.090619

Equilateral Triangle

Length = n
Perimeter 86315247
Area 3.584537778431E+14
Altitude 24917065.54531

Triangular Pyramid

Length = n
Surface area 3.584537778431E+14
Volume 2.8069361941166E+21
Height 13563132.549665