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

28161821 (number)

28161821 is an odd 8-digits composite number following 28161820 and preceding 28161822. In scientific notation, it is written as 2.8161821 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 26479552 positive integers (up to 28161821) that are relatively prime to 28161821.

Interesting facts

28161821 has 8 divisors, whose sum is 29885760
The reverse of 28161821 is 12816182
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-eight million one hundred sixty-one thousand eight hundred twenty-one

Notation

Scientific notation	2.8161821 × 10^7
Engineering notation	2.8161821 × 10^6

Prime Factorization of 28161821

Prime Factorization 23 × 59 × 20753

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	28161821	Product of the distinct prime numbers

The prime factorization of 28161821 is 23 × 59 × 20753. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 2, 34, 14, 880, 155, 4764, 9, 53107, 57573, 156195, 909899, 9781541, 8682820, 87796678, 77998866, 175990376, 164721875, 1062059342, 7207479313

Basic calculations (n = 28161821)

Multiplication

n×y

n×2	56323642
n×3	84485463
n×4	112647284
n×5	140809105

Division

n÷y

n÷2	14080910.5
n÷3	9387273.6666667
n÷3	7040455.25
n÷5	5632364.2

Exponentiation

n^y

n²	793088162036041
n³	2.2334806856478E+22
n⁴	6.2898883276171E+29
n⁵	1.7713470919234E+37

Nth Root

^y√n

²√n	5306.7712405944
³√n	304.24275465178
⁴√n	72.847589119987
⁵√n	30.898126489918

Divisors of 28161821

1, 23, 59, 1357, 20753, 477319, 1224427, 28161821

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	-28161820	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 28161821 can be divided by 8 positive divisors. The sum of these divisors (counting 28161821) is 1, the average is 0.125.

Base conversion 28161821

Base	System	Value
2	Binary	1101011011011011100011101
3	Ternary	1221222202202102
4	Quaternary	1223123130131
5	Quinary	24202134241
6	Senary	2443334445
8	Octal	153333435
10	Decimal	28161821
12	Duodecimal	9521425
16	Hexadecimal	1adb71d
20	Vigesimal	8g04b1
36	Base36	grlst

Cryptographic Hash Functions

md5	157afa13c73fb5a673ba6ba58bef65d0
sha1	cfe766795fe1cd5c1935699873857dfe8a639a77
sha256	0309460554506375488203f25121923fa1c90ab93008d35d9e84009a36d0a7a9
sha512	2047e51375eaa6d9b50db7c6aada2cde287f545e6a058ee50d0dfc07590c7526605410b00a8410952bcee718ec0a8cf83095785a773f8cd4279799c9c8aaeb94
ripemd-160	4472e58befca9940459739c987bcd0a672ba4fa2

28161821 as geometric shapes

Circle

Radius = n

Diameter	56323642
Circumference	176945939.93062
Area	2.4915599435015E+15

Sphere

Radius = n

Volume	9.3555820186211E+22
Surface area	9.9662397740058E+15
Circumference	176945939.93062

Square

Length = n

Perimeter	112647284
Area	793088162036041
Diagonal	39826829.199323

Cube

Length = n

Surface area	4758528972216246
Volume	2.2334806856478E+22
Space diagonal	48777704.80566

Equilateral Triangle

Length = n

Perimeter	84485463
Area	3.4341724788196E+14
Altitude	24388852.40283

Triangular Pyramid

Length = n

Surface area	3.4341724788196E+14
Volume	2.6321822307846E+21
Height	13275609.733108