1285387985 (number)

1285387985 is an odd 10-digits composite number following 1285387984 and preceding 1285387986. In scientific notation, it is written as 1.285387985 × 10^9. The sum of its digits is 56. It has a total of 4 prime factors and 16 positive divisors. There are 866631168 positive integers (up to 1285387985) that are relatively prime to 1285387985.

Interesting facts

Basic properties

Name

Name one billion two hundred eighty-five million three hundred eighty-seven thousand nine hundred eighty-five

Notation

Scientific notation 1.285387985 × 10^9
Engineering notation 1.285387985 × 10^9

Prime Factorization of 1285387985

Prime Factorization 103 × 35 × 149 × 2393

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1285387985
Product of the distinct prime numbers

The prime factorization of 1285387985 is 103 × 35 × 149 × 2393. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 66, 31, 238, 668, 9792, 2134, 97127, 19544, 358863, 769911, 4853402, 3641806, 47495532, 68236366, 800698174, 30033149, 8410030798, 3520901527

Basic calculations (n = 1285387985)

Multiplication

n×y
n×2 2570775970
n×3 3856163955
n×4 5141551940
n×5 6426939925

Division

n÷y
n÷2 642693992.5
n÷3 428462661.66667
n÷3 321346996.25
n÷5 257077597

Exponentiation

ny
n2 1652222271982360225
n3 2.1237466569555E+27
n4 2.7298384360346E+36
n5 3.50890152667E+45

Nth Root

y√n
2√n 35852.307945236
3√n 1087.2883766663
4√n 189.34705686975
5√n 66.344793582859

Divisors of 1285387985

1, 35, 103, 149, 2393, 3605, 5215, 15347, 83755, 246479, 356557, 537145, 8626765, 12479495, 36725371, 1285387985

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1285387984
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1285387985 can be divided by 16 positive divisors. The sum of these divisors (counting 1285387985) is 1, the average is 0.0625.

Base conversion 1285387985

Base System Value
2 Binary 1001100100111010111011011010001
3 Ternary 10022120200110211102
4 Quaternary 1030213113123101
5 Quinary 10113024403420
6 Senary 331314154145
8 Octal 11447273321
10 Decimal 1285387985
12 Duodecimal 2ba582955
16 Hexadecimal 4c9d76d1
20 Vigesimal 101dd9j5
36 Base36 l9abpt

Cryptographic Hash Functions

md5 082769d8636602c7c8d753bf8a353fd5
sha1 4fbb8f217fd442dc2163046cd854149e442d8608
sha256 0a68de1ae716054779a67b1a745d52bb2454cc5d2a181bdbc9a0a9a497ccb517
sha512 784f79ebb8aed4668d8f352c4d8e0331fa8ed63de5d18aed8487e25870611fc8cf33e5cf61997286c7e5c8a67042f3f8e62a22733f68e42c5369d137d811f981
ripemd-160 27c0cfc990fb74ece2551dfa59e8f3182dae2fbe

1285387985 as geometric shapes

Circle

Radius = n
Diameter 2570775970
Circumference 8076330901.3772
Area 5.1906093517572E+18

Sphere

Radius = n
Volume 8.8959291941032E+27
Surface area 2.0762437407029E+19
Circumference 8076330901.3772

Square

Length = n
Perimeter 5141551940
Area 1652222271982360225
Diagonal 1817813121.2984

Cube

Length = n
Surface area 9.9133336318942E+18
Volume 2.1237466569555E+27
Space diagonal 2226357297.4586

Equilateral Triangle

Length = n
Perimeter 3856163955
Area 7.1543323011758E+17
Altitude 1113178648.7293

Triangular Pyramid

Length = n
Surface area 7.1543323011758E+17
Volume 2.5028594377592E+26
Height 605937707.09947