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

28912 (number)

28912 is an even 5-digits composite number following 28911 and preceding 28913. In scientific notation, it is written as 2.8912 × 10^4. The sum of its digits is 22. It has a total of 6 prime factors and 20 positive divisors. There are 13248 positive integers (up to 28912) that are relatively prime to 28912.

Interesting facts

28912 has 20 divisors, whose sum is 60760
The reverse of 28912 is 21982
Previous prime number is 13

Basic properties

Is Prime? no
Number parity even
Number length 5
Sum of Digits 22
Digital Root 4

Name

Name	twenty-eight thousand nine hundred twelve

Notation

Scientific notation	2.8912 × 10^4
Engineering notation	2.8912 × 10^3

Prime Factorization of 28912

Prime Factorization 2 × 2 × 2 × 2 × 13 × 139

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	6	Total number of prime factors
rad	Radical	3614	Product of the distinct prime numbers

The prime factorization of 28912 is 2 × 2 × 2 × 2 × 13 × 139. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 7, 74, 35, 212, 662, 4284, 5672, 94897, 53688, 998739, 85673, 870342, 7577045, 82697284, 7711593, 427752866, 432842061, 5614542299, 7706583616

Basic calculations (n = 28912)

Multiplication

n×y

n×2	57824
n×3	86736
n×4	115648
n×5	144560

Division

n÷y

n÷2	14456
n÷3	9637.3333333333
n÷3	7228
n÷5	5782.4

Exponentiation

n^y

n²	835903744
n³	24167649046528
n⁴	698735069233217536
n⁵	2.0201828321671E+22

Nth Root

^y√n

²√n	170.03529045466
³√n	30.692060462131
⁴√n	13.039758067336
⁵√n	7.8021739200805

Divisors of 28912

1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 1112, 1807, 2224, 3614, 7228, 14456, 28912

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	-28911	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 28912 can be divided by 20 positive divisors. The sum of these divisors (counting 28912) is 1, the average is 0.05.

Base conversion 28912

Base	System	Value
2	Binary	111000011110000
3	Ternary	1110122211
4	Quaternary	13003300
5	Quinary	1411122
6	Senary	341504
8	Octal	70360
10	Decimal	28912
12	Duodecimal	14894
16	Hexadecimal	70f0
20	Vigesimal	3c5c
36	Base36	mb4

Cryptographic Hash Functions

md5	32c12acc9a2efc3fa896bb3ebcd47ee7
sha1	8d535bf7fbbfcd14c07412d0af0618e53e54193c
sha256	d97381b6a267e9599bef6a5a416aae19df3b1ad5362ee21ab7a43848bd551b03
sha512	8e8056de1afe153d03edbc136eed63d007450799541228b16ea29c2f302e7181167e03a3a9e79944b0fcdb8e2f4d382998c50551428684cee099c040279e0d2d
ripemd-160	d7329d800efc71a3d86371f03bbcfcfacebe7f21

28912 as geometric shapes

Circle

Radius = n

Diameter	57824
Circumference	181659.45360118
Area	2626069061.2586

Sphere

Radius = n

Volume	1.0123321159881E+14
Surface area	10504276245.034
Circumference	181659.45360118

Square

Length = n

Perimeter	115648
Area	835903744
Diagonal	40887.742515331

Cube

Length = n

Surface area	5015422464
Volume	24167649046528
Space diagonal	50077.052948431

Equilateral Triangle

Length = n

Perimeter	86736
Area	361956938.71126
Altitude	25038.526474216

Triangular Pyramid

Length = n

Surface area	361956938.71126
Volume	2848184754356.1
Height	13629.24750511