1288985 (number)

1288985 is an odd 7-digits composite number following 1288984 and preceding 1288986. In scientific notation, it is written as 1.288985 × 10^6. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 1031184 positive integers (up to 1288985) that are relatively prime to 1288985.

Interesting facts

Basic properties

Name

Name one million two hundred eighty-eight thousand nine hundred eighty-five

Notation

Scientific notation 1.288985 × 10^6
Engineering notation 1.288985 × 10^6

Prime Factorization of 1288985

Prime Factorization 5 × 257797

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1288985
Product of the distinct prime numbers

The prime factorization of 1288985 is 5 × 257797. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 1288985)

Multiplication

n×y
n×2 2577970
n×3 3866955
n×4 5155940
n×5 6444925

Division

n÷y
n÷2 644492.5
n÷3 429661.66666667
n÷3 322246.25
n÷5 257797

Exponentiation

ny
n2 1661482330225
n3 2141625801425071625
n4 2.7605235336499E+24
n5 3.5582734270217E+30

Nth Root

y√n
2√n 1135.3347523968
3√n 108.83016505177
4√n 33.694728851808
5√n 16.674375319236

Divisors of 1288985

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 -1288984
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 1288985 can be divided by 4 positive divisors. The sum of these divisors (counting 1288985) is 1, the average is 0.25.

Base conversion 1288985

Base System Value
2 Binary 100111010101100011001
3 Ternary 2102111011012
4 Quaternary 10322230121
5 Quinary 312221420
6 Senary 43343305
8 Octal 4725431
10 Decimal 1288985
12 Duodecimal 521b35
16 Hexadecimal 13ab19
20 Vigesimal 81295
36 Base36 rml5

Cryptographic Hash Functions

md5 608167e5e699a7ff74cd19239692204e
sha1 7d8b377d3b3fc60dfb19f1ce95c174419fd86e6c
sha256 0ef234f5e3da53378695804f54d7df6d1f443158d70ec66c3cf101b9bde52889
sha512 b284d3a0f0af6522e0efe0ff496ade85724423459d066882b86692d1305918c67b82d260b866d74dbe2c62cdb2b4a38150cc650b62dee9898421f1a209ffb6c2
ripemd-160 266cac19ee18ae823043642c8f6cacf386c75b0e

1288985 as geometric shapes

Circle

Radius = n
Diameter 2577970
Circumference 8098931.6131749
Area 5219700682704.1

Sphere

Radius = n
Volume 8.9708211793271E+18
Surface area 20878802730816
Circumference 8098931.6131749

Square

Length = n
Perimeter 5155940
Area 1661482330225
Diagonal 1822900.0686955

Cube

Length = n
Surface area 9968893981350
Volume 2141625801425071625
Space diagonal 2232587.5101942

Equilateral Triangle

Length = n
Perimeter 3866955
Area 719442952956.91
Altitude 1116293.7550971

Triangular Pyramid

Length = n
Surface area 719442952956.91
Volume 2.5239302115862E+17
Height 607633.35623183