Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

28438981 (number)

28438981 is an odd 8-digits composite number following 28438980 and preceding 28438982. In scientific notation, it is written as 2.8438981 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 28424032 positive integers (up to 28438981) that are relatively prime to 28438981.

Interesting facts

28438981 has 4 divisors, whose sum is 28453932
The reverse of 28438981 is 18983482
Previous prime number is 2237

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

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

Notation

Scientific notation	2.8438981 × 10^7
Engineering notation	2.8438981 × 10^6

Prime Factorization of 28438981

Prime Factorization 2237 × 12713

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28438981	Product of the distinct prime numbers

The prime factorization of 28438981 is 2237 × 12713. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 3, 3, 51, 695, 224, 6955, 159, 68169, 95571, 513525, 393624, 9515962, 5784436, 39843645, 74160487, 588701430, 861246425, 5831947874, 41755981

Basic calculations (n = 28438981)

Multiplication

n×y

n×2	56877962
n×3	85316943
n×4	113755924
n×5	142194905

Division

n÷y

n÷2	14219490.5
n÷3	9479660.3333333
n÷3	7109745.25
n÷5	5687796.2

Exponentiation

n^y

n²	808775640318361
n³	2.3000755068277E+22
n⁴	6.5411803637237E+29
n⁵	1.8602450408151E+37

Nth Root

^y√n

²√n	5332.8211108193
³√n	305.23758608778
⁴√n	73.026167301997
⁵√n	30.958706449076

Divisors of 28438981

1, 2237, 12713, 28438981

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-28438980	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28438981 can be divided by 4 positive divisors. The sum of these divisors (counting 28438981) is 1, the average is 0.25.

Base conversion 28438981

Base	System	Value
2	Binary	1101100011111000111000101
3	Ternary	1222111211221121
4	Quaternary	1230133013011
5	Quinary	24240021411
6	Senary	2453313541
8	Octal	154370705
10	Decimal	28438981
12	Duodecimal	96358b1
16	Hexadecimal	1b1f1c5
20	Vigesimal	8heh91
36	Base36	gxjnp

Cryptographic Hash Functions

md5	886eca9724be00c9b976eae2f67d3051
sha1	037320abd7f158332f7cae72318c06f2b8e83a6f
sha256	118861a4471515aed757c9fd009eef024e5ab2ad1ce81b2946fd3f69e483a71f
sha512	a18daa5246576764df3912acad160d8dc60c944187c67e3fe3a61ba5f168fb34767fc1df90ca6817426a31e93facbeb97e938d77bc3179d12d8d3cf540aae133
ripemd-160	5c4b42ee5dfebc9e6d080da3b1bf9d39514630c5

28438981 as geometric shapes

Circle

Radius = n

Diameter	56877962
Circumference	178687387.57036
Area	2.5408436100265E+15

Sphere

Radius = n

Volume	9.6345337532688E+22
Surface area	1.0163374440106E+16
Circumference	178687387.57036

Square

Length = n

Perimeter	113755924
Area	808775640318361
Diagonal	40218792.630271

Cube

Length = n

Surface area	4852653841910166
Volume	2.3000755068277E+22
Space diagonal	49257760.007486

Equilateral Triangle

Length = n

Perimeter	85316943
Area	3.5021012523886E+14
Altitude	24628880.003743

Triangular Pyramid

Length = n

Surface area	3.5021012523886E+14
Volume	2.7106649801982E+21
Height	13406264.21009