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

12781421 (number)

12781421 is an odd 8-digits prime number following 12781420 and preceding 12781422. In scientific notation, it is written as 1.2781421 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 12781420 positive integers (up to 12781421) that are relatively prime to 12781421.

Interesting facts

12781421 has 2 divisors, whose sum is 12781422
The reverse of 12781421 is 12418721
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	twelve million seven hundred eighty-one thousand four hundred twenty-one

Notation

Scientific notation	1.2781421 × 10^7
Engineering notation	1.2781421 × 10^6

Prime Factorization of 12781421

Prime Factorization 12781421

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	12781421	Product of the distinct prime numbers

The prime factorization of 12781421 is 12781421. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 8, 64, 92, 130, 150, 222, 2316, 98709, 84077, 341719, 477395, 4452892, 4660775, 33651986, 25080207, 871848888, 762063224, 7101920971, 4597284215

Basic calculations (n = 12781421)

Multiplication

n×y

n×2	25562842
n×3	38344263
n×4	51125684
n×5	63907105

Division

n÷y

n÷2	6390710.5
n÷3	4260473.6666667
n÷3	3195355.25
n÷5	2556284.2

Exponentiation

n^y

n²	163364722779241
n³	2.0880332983898E+21
n⁴	2.6688032648738E+28
n⁵	3.4111098094527E+35

Nth Root

^y√n

²√n	3575.1113269379
³√n	233.80818649267
⁴√n	59.792234670883
⁵√n	26.382492783202

Divisors of 12781421

1, 12781421

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	12781422	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	6390711	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	3575.1114667937	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999998435229	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12781421 can be divided by 2 positive divisors. The sum of these divisors (counting 12781421) is 12781422, the average is 6390711.

Base conversion 12781421

Base	System	Value
2	Binary	110000110000011101101101
3	Ternary	220001100210222
4	Quaternary	300300131231
5	Quinary	11233001141
6	Senary	1133541125
8	Octal	60603555
10	Decimal	12781421
12	Duodecimal	43447a5
16	Hexadecimal	c3076d
20	Vigesimal	3jhdb1
36	Base36	7ly7h

Cryptographic Hash Functions

md5	c99eeae5a767c36147d03801fd4d3053
sha1	7efb2b98fd80741d25399782d3c3d4ec636eb3e9
sha256	e8eda3faf6cc9195c237eecf0b17cdc445fb41a7ad2e1ce698835bad40ea7855
sha512	ff534245358daeb7cc7fb0e0a506726f32efd3af5501fd247bb97db898f5883d56aec468343fd89aedc469fd80b16a397b1ae240605095ebf04b430a2f4dd705
ripemd-160	cb025954b4bc294ab32328cc184a0e3f8d83d49f

12781421 as geometric shapes

Circle

Radius = n

Diameter	25562842
Circumference	80308036.632077
Area	5.13225412939E+14

Sphere

Radius = n

Volume	8.7463334275629E+21
Surface area	2.052901651756E+15
Circumference	80308036.632077

Square

Length = n

Perimeter	51125684
Area	163364722779241
Diagonal	18075658.9246

Cube

Length = n

Surface area	980188336675446
Volume	2.0880332983898E+21
Space diagonal	22138070.564928

Equilateral Triangle

Length = n

Perimeter	38344263
Area	70739000004513
Altitude	11069035.282464

Triangular Pyramid

Length = n

Surface area	70739000004513
Volume	2.4607708410579E+20
Height	6025219.6415334