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

28157021 (number)

28157021 is an odd 8-digits composite number following 28157020 and preceding 28157022. In scientific notation, it is written as 2.8157021 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 27173520 positive integers (up to 28157021) that are relatively prime to 28157021.

Interesting facts

28157021 has 8 divisors, whose sum is 29145600
The reverse of 28157021 is 12075182
Previous prime number is 439

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twenty-eight million one hundred fifty-seven thousand twenty-one

Notation

Scientific notation	2.8157021 × 10^7
Engineering notation	2.8157021 × 10^6

Prime Factorization of 28157021

Prime Factorization 31 × 439 × 2069

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28157021	Product of the distinct prime numbers

The prime factorization of 28157021 is 31 × 439 × 2069. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 4, 65, 2, 193, 15, 3360, 8912, 9045, 10710, 976902, 352611, 6972715, 7472197, 35624529, 67418627, 616783653, 960401386, 3960658126, 4199256013

Basic calculations (n = 28157021)

Multiplication

n×y

n×2	56314042
n×3	84471063
n×4	112628084
n×5	140785105

Division

n÷y

n÷2	14078510.5
n÷3	9385673.6666667
n÷3	7039255.25
n÷5	5631404.2

Exponentiation

n^y

n²	792817831594441
n³	2.2323388333379E+22
n⁴	6.2856011409411E+29
n⁵	1.769838033231E+37

Nth Root

^y√n

²√n	5306.3189689275
³√n	304.22546826726
⁴√n	72.844484821622
⁵√n	30.897073140991

Divisors of 28157021

1, 31, 439, 2069, 13609, 64139, 908291, 28157021

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	-28157020	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 28157021 can be divided by 8 positive divisors. The sum of these divisors (counting 28157021) is 1, the average is 0.125.

Base conversion 28157021

Base	System	Value
2	Binary	1101011011010010001011101
3	Ternary	1221222112011122
4	Quaternary	1223122101131
5	Quinary	24202011041
6	Senary	2443300325
8	Octal	153322135
10	Decimal	28157021
12	Duodecimal	951a6a5
16	Hexadecimal	1ada45d
20	Vigesimal	8fjcb1
36	Base36	gri3h

Cryptographic Hash Functions

md5	d8c2e6cff7d7abe4710163d80ef5c670
sha1	a26aaa9c8791ce6d0ca59ccf9bbd9dae417cdad7
sha256	be6f0e5fc16ed7f2b8adfaad15b67fb08bf215ebe7f4060c8ab55f250e76c009
sha512	defcbfe26abc21d04206ecbeada502b5596e0c8701c3d45b76dc9edce1e74a70c8cfc25358b554efcdf0b95e48523dd5a488189b56c02a5ffbb1caa48d5f0240
ripemd-160	4c0141deb921d4ef468ae6ce9d1e38ed28361996

28157021 as geometric shapes

Circle

Radius = n

Diameter	56314042
Circumference	176915780.64115
Area	2.4907106753721E+15

Sphere

Radius = n

Volume	9.3507990388501E+22
Surface area	9.9628427014883E+15
Circumference	176915780.64115

Square

Length = n

Perimeter	112628084
Area	792817831594441
Diagonal	39820040.974224

Cube

Length = n

Surface area	4756906989566646
Volume	2.2323388333379E+22
Space diagonal	48769390.961784

Equilateral Triangle

Length = n

Perimeter	84471063
Area	3.4330019136704E+14
Altitude	24384695.480892

Triangular Pyramid

Length = n

Surface area	3.4330019136704E+14
Volume	2.6308365449322E+21
Height	13273346.991408