28098981 (number)

28098981 is an odd 8-digits composite number following 28098980 and preceding 28098982. In scientific notation, it is written as 2.8098981 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 20 positive divisors. There are 18273600 positive integers (up to 28098981) that are relatively prime to 28098981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8098981 × 10^7
Engineering notation 2.8098981 × 10^6

Prime Factorization of 28098981

Prime Factorization 3 × 9 × 3 × 41 × 8461

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9366327
Product of the distinct prime numbers

The prime factorization of 28098981 is 3 × 9 × 3 × 41 × 8461. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 36, 73, 597, 628, 1457, 1902, 90731, 59330, 218798, 350203, 2533089, 5898280, 3490902, 47490712, 343623032, 236020504, 4339040730, 6487872713

Basic calculations (n = 28098981)

Multiplication

n×y
n×2 56197962
n×3 84296943
n×4 112395924
n×5 140494905

Division

n÷y
n÷2 14049490.5
n÷3 9366327
n÷3 7024745.25
n÷5 5619796.2

Exponentiation

ny
n2 789552733238361
n3 2.2185627249763E+22
n4 6.2339351856417E+29
n5 1.7516722633658E+37

Nth Root

y√n
2√n 5300.8471964395
3√n 304.01629139955
4√n 72.806917229336
5√n 30.884325012995

Divisors of 28098981

1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 8461, 25383, 76149, 228447, 346901, 685341, 1040703, 3122109, 9366327, 28098981

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28098980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28098981 can be divided by 20 positive divisors. The sum of these divisors (counting 28098981) is 1, the average is 0.05.

Base conversion 28098981

Base System Value
2 Binary 1101011001100000110100101
3 Ternary 1221212120120000
4 Quaternary 1223030012211
5 Quinary 24143131411
6 Senary 2442131513
8 Octal 153140645
10 Decimal 28098981
12 Duodecimal 94b0b99
16 Hexadecimal 1acc1a5
20 Vigesimal 8fc791
36 Base36 gq9b9

Cryptographic Hash Functions

md5 331d54fbca99347d06e792a9832e4fef
sha1 3b5e9e68724deb9a0b7bb05b07a485378df5df71
sha256 f035ae7ccceeccc428c556a82a0cea78f0c3a0d00db1b8328c9afcdf715376b3
sha512 3672cf298ad5e5837c32fee484ed0938f68dccf03199fa45fda71c2c9589e4f9c74e7d9f3844283ba9f5ae15d845ac887a6bb9a47625028d903e1f7ae8683191
ripemd-160 77a4d040230db424366d98648a72653e3498b445

28098981 as geometric shapes

Circle

Radius = n
Diameter 56197962
Circumference 176551104.56592
Area 2.4804530663634E+15

Sphere

Radius = n
Volume 9.2930938110848E+22
Surface area 9.9218122654535E+15
Circumference 176551104.56592

Square

Length = n
Perimeter 112395924
Area 789552733238361
Diagonal 39737960.019064

Cube

Length = n
Surface area 4737316399430166
Volume 2.2185627249763E+22
Space diagonal 48668862.732913

Equilateral Triangle

Length = n
Perimeter 84296943
Area 3.4188636230593E+14
Altitude 24334431.366456

Triangular Pyramid

Length = n
Surface area 3.4188636230593E+14
Volume 2.6146012455307E+21
Height 13245986.673021