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

12921981 (number)

12921981 is an odd 8-digits composite number following 12921980 and preceding 12921982. In scientific notation, it is written as 1.2921981 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 8614652 positive integers (up to 12921981) that are relatively prime to 12921981.

Interesting facts

12921981 has 4 divisors, whose sum is 17229312
The reverse of 12921981 is 18912921
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	1.2921981 × 10^7
Engineering notation	1.2921981 × 10^6

Prime Factorization of 12921981

Prime Factorization 3 × 4307327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12921981	Product of the distinct prime numbers

The prime factorization of 12921981 is 3 × 4307327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 6, 31, 76, 944, 755, 6469, 6436, 71306, 50144, 331495, 349109, 3899784, 5738575, 53626708, 25618836, 890891318, 385531612, 2958867385, 2290444849

Basic calculations (n = 12921981)

Multiplication

n×y

n×2	25843962
n×3	38765943
n×4	51687924
n×5	64609905

Division

n÷y

n÷2	6460990.5
n÷3	4307327
n÷3	3230495.25
n÷5	2584396.2

Exponentiation

n^y

n²	166977592964361
n³	2.1576812837112E+21
n⁴	2.7881516552172E+28
n⁵	3.6028442713835E+35

Nth Root

^y√n

²√n	3594.7157050315
³√n	234.66214314018
⁴√n	59.955948037134
⁵√n	26.440265976216

Divisors of 12921981

1, 3, 4307327, 12921981

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	-12921980	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 12921981 can be divided by 4 positive divisors. The sum of these divisors (counting 12921981) is 1, the average is 0.25.

Base conversion 12921981

Base	System	Value
2	Binary	110001010010110001111101
3	Ternary	220022111121220
4	Quaternary	301102301331
5	Quinary	11302000411
6	Senary	1140543553
8	Octal	61226175
10	Decimal	12921981
12	Duodecimal	43b1bb9
16	Hexadecimal	c52c7d
20	Vigesimal	40f4j1
36	Base36	7oynx

Cryptographic Hash Functions

md5	96594c45cca256631215612264337417
sha1	fcbdb1ec5bba8702240bb9907dc6d91f8bc46309
sha256	bfc6c102da683001b14b7c470627e0a0e7124bdd180dfc5fe2ced868dfd0f121
sha512	2e092c7daf7d86b5529b7042254e86f114bba5c7e4f0dbee94eee034d4e4464fa10fe864a549579ac4ca797eff68d5d4fe8bae97993217fed844fabb4396bba3
ripemd-160	4f12864e78e20389673e3f07b629ac8f79ca7449

12921981 as geometric shapes

Circle

Radius = n

Diameter	25843962
Circumference	81191201.158854
Area	5.2457557937094E+14

Sphere

Radius = n

Volume	9.0380742262604E+21
Surface area	2.0983023174838E+15
Circumference	81191201.158854

Square

Length = n

Perimeter	51687924
Area	166977592964361
Diagonal	18274440.782927

Cube

Length = n

Surface area	1001865557786166
Volume	2.1576812837112E+21
Space diagonal	22381527.62644

Equilateral Triangle

Length = n

Perimeter	38765943
Area	72303418684957
Altitude	11190763.81322

Triangular Pyramid

Length = n

Surface area	72303418684957
Volume	2.5428517789191E+20
Height	6091480.2609758