28991109 (number)

28991109 is an odd 8-digits composite number following 28991108 and preceding 28991110. In scientific notation, it is written as 2.8991109 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 15713280 positive integers (up to 28991109) that are relatively prime to 28991109.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand one hundred nine

Notation

Scientific notation 2.8991109 × 10^7
Engineering notation 2.8991109 × 10^6

Prime Factorization of 28991109

Prime Factorization 7 × 3 × 23 × 193 × 311

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 28991109
Product of the distinct prime numbers

The prime factorization of 28991109 is 7 × 3 × 23 × 193 × 311. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 3, 96, 40, 345, 37, 295, 4306, 86239, 79764, 273066, 533502, 6783270, 6004531, 2730463, 31748656, 131172197, 228026366, 9717532162, 5987166242

Basic calculations (n = 28991109)

Multiplication

n×y
n×2 57982218
n×3 86973327
n×4 115964436
n×5 144955545

Division

n÷y
n÷2 14495554.5
n÷3 9663703
n÷3 7247777.25
n÷5 5798221.8

Exponentiation

ny
n2 840484401049881
n3 2.4366574883637E+22
n4 7.0641402840818E+29
n5 2.0479726096711E+37

Nth Root

y√n
2√n 5384.3392352265
3√n 307.20028169394
4√n 73.378056905498
5√n 31.077993087719

Divisors of 28991109

1, 3, 7, 21, 23, 69, 161, 193, 311, 483, 579, 933, 1351, 2177, 4053, 4439, 6531, 7153, 13317, 21459, 31073, 50071, 60023, 93219, 150213, 180069, 420161, 1260483, 1380529, 4141587, 9663703, 28991109

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28991108
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28991109 can be divided by 32 positive divisors. The sum of these divisors (counting 28991109) is 1, the average is 0.03125.

Base conversion 28991109

Base System Value
2 Binary 1101110100101111010000101
3 Ternary 2000112220022210
4 Quaternary 1232211322011
5 Quinary 24410203414
6 Senary 2513214033
8 Octal 156457205
10 Decimal 28991109
12 Duodecimal 9861319
16 Hexadecimal 1ba5e85
20 Vigesimal 913hf9
36 Base36 h9dol

Cryptographic Hash Functions

md5 13193cf5528fbda4e96dfbd31c4df08e
sha1 d9ea0655de3a7b5ebfeeefd84d1e90618ee35545
sha256 1925e71330d7adcc37af3cbe5795ee5deede64c0232292d26b651fa645721700
sha512 e65479acafb3d54b4f748bc82931b63eea369bb871c520794598ab59b40302f8d9d78678f2d3eedc900ed8f4771ca7b2d48b7a321eef68266147440ed2d041ee
ripemd-160 b93122d1a22242d2058cd2585e36cfd95757bed3

28991109 as geometric shapes

Circle

Radius = n
Diameter 57982218
Circumference 182156510.10764
Area 2.6404596197951E+15

Sphere

Radius = n
Volume 1.0206647019677E+23
Surface area 1.056183847918E+16
Circumference 182156510.10764

Square

Length = n
Perimeter 115964436
Area 840484401049881
Diagonal 40999619.536037

Cube

Length = n
Surface area 5042906406299286
Volume 2.4366574883637E+22
Space diagonal 50214073.755767

Equilateral Triangle

Length = n
Perimeter 86973327
Area 3.6394042139687E+14
Altitude 25107036.877884

Triangular Pyramid

Length = n
Surface area 3.6394042139687E+14
Volume 2.8716283890849E+21
Height 13666539.845346