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

12821981 (number)

12821981 is an odd 8-digits composite number following 12821980 and preceding 12821982. In scientific notation, it is written as 1.2821981 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 12811200 positive integers (up to 12821981) that are relatively prime to 12821981.

Interesting facts

12821981 has 4 divisors, whose sum is 12832764
The reverse of 12821981 is 18912821
Previous prime number is 1361

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	twelve million eight hundred twenty-one thousand nine hundred eighty-one

Notation

Scientific notation	1.2821981 × 10^7
Engineering notation	1.2821981 × 10^6

Prime Factorization of 12821981

Prime Factorization 1361 × 9421

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12821981	Product of the distinct prime numbers

The prime factorization of 12821981 is 1361 × 9421. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 98, 94, 578, 94, 3795, 8624, 92508, 81729, 135288, 216083, 3293500, 6307123, 40303346, 13025078, 737916740, 351209323, 2559228270, 2797341294

Basic calculations (n = 12821981)

Multiplication

n×y

n×2	25643962
n×3	38465943
n×4	51287924
n×5	64109905

Division

n÷y

n÷2	6410990.5
n÷3	4273993.6666667
n÷3	3205495.25
n÷5	2564396.2

Exponentiation

n^y

n²	164403196764361
n³	2.1079746652519E+21
n⁴	2.7028411106341E+28
n⁵	3.465577736657E+35

Nth Root

^y√n

²√n	3580.7793844357
³√n	234.05524421909
⁴√n	59.839613839293
⁵√n	26.399215778205

Divisors of 12821981

1, 1361, 9421, 12821981

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	-12821980	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 12821981 can be divided by 4 positive divisors. The sum of these divisors (counting 12821981) is 1, the average is 0.25.

Base conversion 12821981

Base	System	Value
2	Binary	110000111010010111011101
3	Ternary	220010102110012
4	Quaternary	300322113131
5	Quinary	11240300411
6	Senary	1134453005
8	Octal	60722735
10	Decimal	12821981
12	Duodecimal	4364165
16	Hexadecimal	c3a5dd
20	Vigesimal	402ej1
36	Base36	7mti5

Cryptographic Hash Functions

md5	209a3eaddd91249696d7e0dc41203bc7
sha1	71f3bb07969df41fd4015c672ba5c8fe38087261
sha256	2103031878bff4482f0b0e8baedf2588e970ae077078fee31ae0f5b3f41541cf
sha512	d90ab00fa6d3f2707bef5d83799a4cdba37f3e5fe3155e51d700004a9d8de5e806700048b1e52d22cdffd2087a2dcf88068f3bdcca37645fc9726440acde2e20
ripemd-160	909127ec3c6010a0b5443c2a0aa6a03776caf47b

12821981 as geometric shapes

Circle

Radius = n

Diameter	25643962
Circumference	80562882.628136
Area	5.1648787518159E+14

Sphere

Radius = n

Volume	8.829863629745E+21
Surface area	2.0659515007264E+15
Circumference	80562882.628136

Square

Length = n

Perimeter	51287924
Area	164403196764361
Diagonal	18133019.42669

Cube

Length = n

Surface area	986419180586166
Volume	2.1079746652519E+21
Space diagonal	22208322.545683

Equilateral Triangle

Length = n

Perimeter	38465943
Area	71188672430654
Altitude	11104161.272841

Triangular Pyramid

Length = n

Surface area	71188672430654
Volume	2.4842719672818E+20
Height	6044339.8088967