28931155 (number)

28931155 is an odd 8-digits composite number following 28931154 and preceding 28931156. In scientific notation, it is written as 2.8931155 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 20832480 positive integers (up to 28931155) that are relatively prime to 28931155.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-one thousand one hundred fifty-five

Notation

Scientific notation 2.8931155 × 10^7
Engineering notation 2.8931155 × 10^6

Prime Factorization of 28931155

Prime Factorization 5 × 11 × 103 × 5107

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931155
Product of the distinct prime numbers

The prime factorization of 28931155 is 5 × 11 × 103 × 5107. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 5, 90, 90, 134, 7769, 3310, 9513, 99730, 465946, 236511, 6868537, 1653229, 24251027, 71166180, 824078374, 191015445, 5810369836, 6830018840

Basic calculations (n = 28931155)

Multiplication

n×y
n×2 57862310
n×3 86793465
n×4 115724620
n×5 144655775

Division

n÷y
n÷2 14465577.5
n÷3 9643718.3333333
n÷3 7232788.75
n÷5 5786231

Exponentiation

ny
n2 837011729634025
n3 2.421571608686E+22
n4 7.0058863554494E+29
n5 2.0268838406189E+37

Nth Root

y√n
2√n 5378.7689111915
3√n 306.98837078889
4√n 73.340090749818
5√n 31.065128500834

Divisors of 28931155

1, 5, 11, 55, 103, 515, 1133, 5107, 5665, 25535, 56177, 280885, 526021, 2630105, 5786231, 28931155

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 -28931154
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 28931155 can be divided by 16 positive divisors. The sum of these divisors (counting 28931155) is 1, the average is 0.0625.

Base conversion 28931155

Base System Value
2 Binary 1101110010111010001010011
3 Ternary 2000102212002021
4 Quaternary 1232113101103
5 Quinary 24401244110
6 Senary 2512032311
8 Octal 156272123
10 Decimal 28931155
12 Duodecimal 9832697
16 Hexadecimal 1b97453
20 Vigesimal 90g7hf
36 Base36 h83f7

Cryptographic Hash Functions

md5 91be6a2aee17dd4e168297412e53ad80
sha1 870e2abb9910062ba52dd8e0e437614309ce97ee
sha256 179b9d3383a69860dbb2af3b8740b1ad960f0d676034307608c67017c9bcd9be
sha512 961d648baefb9060affd3d3e31e6e6eb66ae08cea4cf72dce484011398b69d276f7beb84ce5c852397223aba5bbdb0c5f75dc9c562926118ffbd88b525c0ffb2
ripemd-160 241c32d71c54e02bba3d75537861b72299968652

28931155 as geometric shapes

Circle

Radius = n
Diameter 57862310
Circumference 181779808.01574
Area 2.6295499007867E+15

Sphere

Radius = n
Volume 1.0143455434653E+23
Surface area 1.0518199603147E+16
Circumference 181779808.01574

Square

Length = n
Perimeter 115724620
Area 837011729634025
Diagonal 40914831.776118

Cube

Length = n
Surface area 5022070377804150
Volume 2.421571608686E+22
Space diagonal 50110230.38165

Equilateral Triangle

Length = n
Perimeter 86793465
Area 3.6243671056431E+14
Altitude 25055115.190825

Triangular Pyramid

Length = n
Surface area 3.6243671056431E+14
Volume 2.8538495093845E+21
Height 13638277.258706