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

28931438 (number)

28931438 is an even 8-digits composite number following 28931437 and preceding 28931439. In scientific notation, it is written as 2.8931438 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 14433880 positive integers (up to 28931438) that are relatively prime to 28931438.

Interesting facts

28931438 has 8 divisors, whose sum is 43492680
The reverse of 28931438 is 83413982
Previous prime number is 461

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

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

Notation

Scientific notation	2.8931438 × 10^7
Engineering notation	2.8931438 × 10^6

Prime Factorization of 28931438

Prime Factorization 2 × 461 × 31379

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28931438	Product of the distinct prime numbers

The prime factorization of 28931438 is 2 × 461 × 31379. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 5, 52, 33, 690, 1, 9001, 9019, 47229, 90479, 335958, 35473, 8169496, 7537514, 8962582, 75986101, 91177414, 169749767, 7035918971, 4352725957

Basic calculations (n = 28931438)

Multiplication

n×y

n×2	57862876
n×3	86794314
n×4	115725752
n×5	144657190

Division

n÷y

n÷2	14465719
n÷3	9643812.6666667
n÷3	7232859.5
n÷5	5786287.6

Exponentiation

n^y

n²	837028104747844
n³	2.421642671677E+22
n⁴	7.0061604813777E+29
n⁵	2.0269829758503E+37

Nth Root

^y√n

²√n	5378.7952182622
³√n	306.98937175625
⁴√n	73.340270099463
⁵√n	31.065189275434

Divisors of 28931438

1, 2, 461, 922, 31379, 62758, 14465719, 28931438

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-28931437	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28931438 can be divided by 8 positive divisors. The sum of these divisors (counting 28931438) is 1, the average is 0.125.

Base conversion 28931438

Base	System	Value
2	Binary	1101110010111010101101110
3	Ternary	2000102212110202
4	Quaternary	1232113111232
5	Quinary	24401301223
6	Senary	2512033502
8	Octal	156272556
10	Decimal	28931438
12	Duodecimal	9832892
16	Hexadecimal	1b9756e
20	Vigesimal	90g8bi
36	Base36	h83n2

Cryptographic Hash Functions

md5	49b08ee388a41933bfd9bf0cd1c67433
sha1	9a91cabdd390aad0672a8dbe6499ec1f4ba268e6
sha256	ff47fb0f72077286fce796ebb3b4dbe116664a2d23589af4d063836305f781b9
sha512	a3247304075d8b0c298fc94f97531c09e7461a09c12765f61bb442afdd3707934a50c41c8e3f9ff7784a2c46c38658aedf2c221e432437ddfedff7f88901b4e8
ripemd-160	8abed7bae541f31788fb8918cbc3e8199a071d8f

28931438 as geometric shapes

Circle

Radius = n

Diameter	57862876
Circumference	181781586.15718
Area	2.629601344724E+15

Sphere

Radius = n

Volume	1.0143753102613E+23
Surface area	1.0518405378896E+16
Circumference	181781586.15718

Square

Length = n

Perimeter	115725752
Area	837028104747844
Diagonal	40915231.998556

Cube

Length = n

Surface area	5022168628487064
Volume	2.421642671677E+22
Space diagonal	50110720.552029

Equilateral Triangle

Length = n

Perimeter	86794314
Area	3.6244380119659E+14
Altitude	25055360.276014

Triangular Pyramid

Length = n

Surface area	3.6244380119659E+14
Volume	2.8539332579225E+21
Height	13638410.666185