28931085 (number)

28931085 is an odd 8-digits composite number following 28931084 and preceding 28931086. In scientific notation, it is written as 2.8931085 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 15100512 positive integers (up to 28931085) that are relatively prime to 28931085.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8931085 × 10^7
Engineering notation 2.8931085 × 10^6

Prime Factorization of 28931085

Prime Factorization 9 × 5 × 47 × 13679

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28931085
Product of the distinct prime numbers

The prime factorization of 28931085 is 9 × 5 × 47 × 13679. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 75, 85, 634, 926, 357, 3528, 5921, 13694, 896451, 969637, 2539161, 2545533, 98708765, 34455005, 991607234, 157637756, 3873623707, 7806902144

Basic calculations (n = 28931085)

Multiplication

n×y
n×2 57862170
n×3 86793255
n×4 115724340
n×5 144655425

Division

n÷y
n÷2 14465542.5
n÷3 9643695
n÷3 7232771.25
n÷5 5786217

Exponentiation

ny
n2 837007679277225
n3 2.4215540314822E+22
n4 7.0058185516905E+29
n5 2.0268593201353E+37

Nth Root

y√n
2√n 5378.7624041223
3√n 306.98812319878
4√n 73.340046387512
5√n 31.065113468174

Divisors of 28931085

1, 5, 9, 45, 47, 235, 423, 2115, 13679, 68395, 123111, 615555, 642913, 3214565, 5786217, 28931085

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 -28931084
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 28931085 can be divided by 16 positive divisors. The sum of these divisors (counting 28931085) is 1, the average is 0.0625.

Base conversion 28931085

Base System Value
2 Binary 1101110010111010000001101
3 Ternary 2000102211222200
4 Quaternary 1232113100031
5 Quinary 24401243320
6 Senary 2512032113
8 Octal 156272015
10 Decimal 28931085
12 Duodecimal 9832639
16 Hexadecimal 1b9740d
20 Vigesimal 90g7e5
36 Base36 h83d9

Cryptographic Hash Functions

md5 d4fbde4ee141dc5732464c19dd3276b9
sha1 b60ed45044124530127f949ebbea4c11d061d564
sha256 aa67cceebae11d2fa5eb13add575933967f0d6ff8baf6128b3dc8a6046c7d21c
sha512 badb26632244121b56502d43c7ee3f5bb92d5969bac9b16912e4d558640873e089152fa1afbe342cab5bb19f51e24c3fbb376897b23cd5547c5f1cf0e82a4940
ripemd-160 8d4a120d885533d27293328562adecc02832d816

28931085 as geometric shapes

Circle

Radius = n
Diameter 57862170
Circumference 181779368.19276
Area 2.6295371762156E+15

Sphere

Radius = n
Volume 1.0143381807434E+23
Surface area 1.0518148704862E+16
Circumference 181779368.19276

Square

Length = n
Perimeter 115724340
Area 837007679277225
Diagonal 40914732.781169

Cube

Length = n
Surface area 5022046075663350
Volume 2.4215540314822E+22
Space diagonal 50110109.138094

Equilateral Triangle

Length = n
Perimeter 86793255
Area 3.6243495670837E+14
Altitude 25055054.569047

Triangular Pyramid

Length = n
Surface area 3.6243495670837E+14
Volume 2.8538287944512E+21
Height 13638244.26039