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

28921421 (number)

28921421 is an odd 8-digits composite number following 28921420 and preceding 28921422. In scientific notation, it is written as 2.8921421 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 28489692 positive integers (up to 28921421) that are relatively prime to 28921421.

Interesting facts

28921421 has 4 divisors, whose sum is 29353152
The reverse of 28921421 is 12412982
Previous prime number is 67

Basic properties

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

Name

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

Notation

Scientific notation	2.8921421 × 10^7
Engineering notation	2.8921421 × 10^6

Prime Factorization of 28921421

Prime Factorization 67 × 431663

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	28921421	Product of the distinct prime numbers

The prime factorization of 28921421 is 67 × 431663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 4, 44, 72, 7, 454, 2651, 4359, 13755, 70274, 514967, 762753, 3353299, 5111542, 38108632, 74250818, 935518832, 749346977, 9259152710, 9071924788

Basic calculations (n = 28921421)

Multiplication

n×y

n×2	57842842
n×3	86764263
n×4	115685684
n×5	144607105

Division

n÷y

n÷2	14460710.5
n÷3	9640473.6666667
n÷3	7230355.25
n÷5	5784284.2

Exponentiation

n^y

n²	836448592659241
n³	2.4191281893155E+22
n⁴	6.9964624816162E+29
n⁵	2.0234763694153E+37

Nth Root

^y√n

²√n	5377.8639811732
³√n	306.95393778178
⁴√n	73.333921081401
⁵√n	31.063037822706

Divisors of 28921421

1, 67, 431663, 28921421

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	-28921420	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 28921421 can be divided by 4 positive divisors. The sum of these divisors (counting 28921421) is 1, the average is 0.25.

Base conversion 28921421

Base	System	Value
2	Binary	1101110010100111001001101
3	Ternary	2000102100201202
4	Quaternary	1232110321031
5	Quinary	24400441141
6	Senary	2511515245
8	Octal	156247115
10	Decimal	28921421
12	Duodecimal	9828b25
16	Hexadecimal	1b94e4d
20	Vigesimal	90f3b1
36	Base36	h7vwt

Cryptographic Hash Functions

md5	8afc12fb2ed54fd8ce8951c3b55c5e1a
sha1	61ef70515dacc5c10e6836826ee6ecf3641d5ca3
sha256	45c8d9190afc4fbca312630ce04f5dd6b15bde3d9c933a7bd0eb301bbb37a731
sha512	7784befe2a173fb920c75cfb2eb8e88169035be6058986046122be05329ed9344dae832580a0a3a03a4f2d2cb058b4188be0f2674c3d486bc720fc77964056ec
ripemd-160	4791f419ac83b6cf2b4e62436665be2f2002a51a

28921421 as geometric shapes

Circle

Radius = n

Diameter	57842842
Circumference	181718647.48996
Area	2.6277807538038E+15

Sphere

Radius = n

Volume	1.0133220463528E+23
Surface area	1.0511123015215E+16
Circumference	181718647.48996

Square

Length = n

Perimeter	115685684
Area	836448592659241
Diagonal	40901065.821302

Cube

Length = n

Surface area	5018691555955446
Volume	2.4191281893155E+22
Space diagonal	50093370.599089

Equilateral Triangle

Length = n

Perimeter	86764263
Area	3.6219286510132E+14
Altitude	25046685.299545

Triangular Pyramid

Length = n

Surface area	3.6219286510132E+14
Volume	2.8509699120409E+21
Height	13633688.607101