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

12987890 (number)

12987890 is an even 8-digits composite number following 12987889 and preceding 12987891. In scientific notation, it is written as 1.2987890 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 5195152 positive integers (up to 12987890) that are relatively prime to 12987890.

Interesting facts

12987890 has 8 divisors, whose sum is 23378220
The reverse of 12987890 is 09878921
Previous prime number is 5

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twelve million nine hundred eighty-seven thousand eight hundred ninety

Notation

Scientific notation	1.2987890 × 10^7
Engineering notation	1.2987890 × 10^6

Prime Factorization of 12987890

Prime Factorization 2 × 5 × 1298789

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	12987890	Product of the distinct prime numbers

The prime factorization of 12987890 is 2 × 5 × 1298789. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 5, 47, 87, 404, 608, 8514, 4191, 48538, 81786, 629995, 312682, 9417441, 5336411, 49970181, 92029794, 773141574, 291983473, 2406656537, 2200336771

Basic calculations (n = 12987890)

Multiplication

n×y

n×2	25975780
n×3	38963670
n×4	51951560
n×5	64939450

Division

n÷y

n÷2	6493945
n÷3	4329296.6666667
n÷3	3246972.5
n÷5	2597578

Exponentiation

n^y

n²	168685286652100
n³	2.1908659476559E+21
n⁴	2.8454725932901E+28
n⁵	3.6956685039667E+35

Nth Root

^y√n

²√n	3603.8715293417
³√n	235.0604341326
⁴√n	60.032254075137
⁵√n	26.467183009309

Divisors of 12987890

1, 2, 5, 10, 1298789, 2597578, 6493945, 12987890

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	-12987889	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 12987890 can be divided by 8 positive divisors. The sum of these divisors (counting 12987890) is 1, the average is 0.125.

Base conversion 12987890

Base	System	Value
2	Binary	110001100010110111110010
3	Ternary	220102212000222
4	Quaternary	301202313302
5	Quinary	11311103030
6	Senary	1142213042
8	Octal	61426762
10	Decimal	12987890
12	Duodecimal	4424182
16	Hexadecimal	c62df2
20	Vigesimal	4139ea
36	Base36	7qdiq

Cryptographic Hash Functions

md5	e842a63d2a5dc3885366f0fc4de41be5
sha1	9488d43548524743903be81db13cbd8fe8855687
sha256	4d1069dff2dd000fa4978d887437d770561db1a79156b2f42d8752e6fb743a4d
sha512	7d8d7d6d068fa92e2ee1b9bb5988e01c2fdfba622d0b9cf5a5b2fdbfd55beb3f0af752fe8f854ee969cd738281f1ae27a967cd68724b69d1cc4ec1f8dd29580a
ripemd-160	3f171d1c87cdaa167d37f51f767e15eb1f18d1cb

12987890 as geometric shapes

Circle

Radius = n

Diameter	25975780
Circumference	81605319.619265
Area	5.2994045731493E+14

Sphere

Radius = n

Volume	9.1770778215413E+21
Surface area	2.1197618292597E+15
Circumference	81605319.619265

Square

Length = n

Perimeter	51951560
Area	168685286652100
Diagonal	18367650.18461

Cube

Length = n

Surface area	1012111719912600
Volume	2.1908659476559E+21
Space diagonal	22495685.363116

Equilateral Triangle

Length = n

Perimeter	38963670
Area	73042871742689
Altitude	11247842.681558

Triangular Pyramid

Length = n

Surface area	73042871742689
Volume	2.5819602804303E+20
Height	6122550.0615366