28366981 (number)

28366981 is an odd 8-digits composite number following 28366980 and preceding 28366982. In scientific notation, it is written as 2.8366981 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 25465968 positive integers (up to 28366981) that are relatively prime to 28366981.

Interesting facts

Basic properties

Name

Name twenty-eight million three hundred sixty-six thousand nine hundred eighty-one

Notation

Scientific notation 2.8366981 × 10^7
Engineering notation 2.8366981 × 10^6

Prime Factorization of 28366981

Prime Factorization 23 × 19 × 139 × 467

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 28366981
Product of the distinct prime numbers

The prime factorization of 28366981 is 23 × 19 × 139 × 467. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 84, 98, 179, 17, 4694, 8012, 29877, 94053, 572036, 921291, 1720969, 550992, 63731271, 17061679, 600812675, 948953289, 5303332646, 6317618398

Basic calculations (n = 28366981)

Multiplication

n×y
n×2 56733962
n×3 85100943
n×4 113467924
n×5 141834905

Division

n÷y
n÷2 14183490.5
n÷3 9455660.3333333
n÷3 7091745.25
n÷5 5673396.2

Exponentiation

ny
n2 804685611054361
n3 2.2826501439752E+22
n4 6.4751893263793E+29
n5 1.836815725928E+37

Nth Root

y√n
2√n 5326.0661843428
3√n 304.97977470471
4√n 72.979902605737
5√n 30.943014693997

Divisors of 28366981

1, 19, 23, 139, 437, 467, 2641, 3197, 8873, 10741, 60743, 64913, 204079, 1233347, 1492999, 28366981

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 -28366980
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 28366981 can be divided by 16 positive divisors. The sum of these divisors (counting 28366981) is 1, the average is 0.0625.

Base conversion 28366981

Base System Value
2 Binary 1101100001101100010000101
3 Ternary 1222101012011221
4 Quaternary 1230031202011
5 Quinary 24230220411
6 Senary 2452000341
8 Octal 154154205
10 Decimal 28366981
12 Duodecimal 96000b1
16 Hexadecimal 1b0d885
20 Vigesimal 8h5h91
36 Base36 gw03p

Cryptographic Hash Functions

md5 3c21a587620d486c55b1e0c16d9736b9
sha1 656ba7ab596739edbaae7c8b746b98b356c0d277
sha256 fabee85f29c6ff2c0519c05efd716bd483383e78dc42e04c5f4f51c4b4494985
sha512 2944182ad11156ccd6e1a7bd8afa1040c1fc9537b5b5dd431e61f4ab7d60f2d01798fc3ef5d7f8447d53ea5f1139907dc8384baec34ace849289d3cec094829a
ripemd-160 8c64bbfd47d916fecd4e845f12d6c79ad42d96fd

28366981 as geometric shapes

Circle

Radius = n
Diameter 56733962
Circumference 178234998.22824
Area 2.5279944041378E+15

Sphere

Radius = n
Volume 9.5615425640377E+22
Surface area 1.0111977616551E+16
Circumference 178234998.22824

Square

Length = n
Perimeter 113467924
Area 804685611054361
Diagonal 40116969.25378

Cube

Length = n
Surface area 4828113666326166
Volume 2.2826501439752E+22
Space diagonal 49133052.349341

Equilateral Triangle

Length = n
Perimeter 85100943
Area 3.4843909061644E+14
Altitude 24566526.17467

Triangular Pyramid

Length = n
Surface area 3.4843909061644E+14
Volume 2.6901289931356E+21
Height 13372323.084593