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

12781390 (number)

12781390 is an even 8-digits composite number following 12781389 and preceding 12781391. In scientific notation, it is written as 1.2781390 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 5112552 positive integers (up to 12781390) that are relatively prime to 12781390.

Interesting facts

12781390 has 8 divisors, whose sum is 23006520
The reverse of 12781390 is 09318721
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	twelve million seven hundred eighty-one thousand three hundred ninety

Notation

Scientific notation	1.2781390 × 10^7
Engineering notation	1.2781390 × 10^6

Prime Factorization of 12781390

Prime Factorization 2 × 5 × 1278139

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12781390	Product of the distinct prime numbers

The prime factorization of 12781390 is 2 × 5 × 1278139. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 3, 71, 46, 66, 927, 7951, 1285, 5005, 43448, 250958, 973824, 2640344, 6739723, 15381773, 25337200, 477413967, 922200450, 35568445, 9770825485

Basic calculations (n = 12781390)

Multiplication

n×y

n×2	25562780
n×3	38344170
n×4	51125560
n×5	63906950

Division

n÷y

n÷2	6390695
n÷3	4260463.3333333
n÷3	3195347.5
n÷5	2556278

Exponentiation

n^y

n²	163363930332100
n³	2.0880181055074E+21
n⁴	2.6687773733551E+28
n⁵	3.4110684432027E+35

Nth Root

^y√n

²√n	3575.106991406
³√n	233.80799746675
⁴√n	59.792198415897
⁵√n	26.382479985594

Divisors of 12781390

1, 2, 5, 10, 1278139, 2556278, 6390695, 12781390

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	-12781389	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 12781390 can be divided by 8 positive divisors. The sum of these divisors (counting 12781390) is 1, the average is 0.125.

Base conversion 12781390

Base	System	Value
2	Binary	110000110000011101001110
3	Ternary	220001100202211
4	Quaternary	300300131032
5	Quinary	11233001030
6	Senary	1133541034
8	Octal	60603516
10	Decimal	12781390
12	Duodecimal	434477a
16	Hexadecimal	c3074e
20	Vigesimal	3jhd9a
36	Base36	7ly6m

Cryptographic Hash Functions

md5	6c74b86bf61192f8cd061a8756b63863
sha1	0c25d3bd1c2325387e8dc666939736eb95da1743
sha256	8941b955533cc572f0aeba0772715d1a82c3ac72c9bffb822070257cf0c8f17f
sha512	f0aa75daf921b88a18e59a9f25c516216e908d66f4667357f7ce772ae0d010dbf1af81d21981354b1729239b7e6893e45436ccc7c3b9c646b633b77bb0c5ea94
ripemd-160	e6b98e39ddc820c9ec7fb085d2c55d105a46a21f

12781390 as geometric shapes

Circle

Radius = n

Diameter	25562780
Circumference	80307841.853332
Area	5.1322292339288E+14

Sphere

Radius = n

Volume	8.746269787766E+21
Surface area	2.0528916935715E+15
Circumference	80307841.853332

Square

Length = n

Perimeter	51125560
Area	163363930332100
Diagonal	18075615.08398

Cube

Length = n

Surface area	980183581992600
Volume	2.0880181055074E+21
Space diagonal	22138016.871353

Equilateral Triangle

Length = n

Perimeter	38344170
Area	70738656864835
Altitude	11069008.435676

Triangular Pyramid

Length = n

Surface area	70738656864835
Volume	2.4607529360743E+20
Height	6025205.0279933