12785 (number)

12785 is an odd 5-digits composite number following 12784 and preceding 12786. In scientific notation, it is written as 1.2785 × 10^4. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 10224 positive integers (up to 12785) that are relatively prime to 12785.

Interesting facts

Basic properties

Name

Name twelve thousand seven hundred eighty-five

Notation

Scientific notation 1.2785 × 10^4
Engineering notation 1.2785 × 10^3

Prime Factorization of 12785

Prime Factorization 5 × 2557

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 12785
Product of the distinct prime numbers

The prime factorization of 12785 is 5 × 2557. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 61, 9, 679, 350, 223, 9548, 94467, 42368, 503375, 293810, 9990238, 7511342, 88405876, 28006709, 625136031, 35025782, 2549493218, 2878818369

Basic calculations (n = 12785)

Multiplication

n×y
n×2 25570
n×3 38355
n×4 51140
n×5 63925

Division

n÷y
n÷2 6392.5
n÷3 4261.6666666667
n÷3 3196.25
n÷5 2557

Exponentiation

ny
n2 163456225
n3 2089787836625
n4 26717937491250625
n5 3.4158883082564E+20

Nth Root

y√n
2√n 113.07077429646
3√n 23.383000778588
4√n 10.633474234532
5√n 6.6273536555733

Divisors of 12785

1, 5, 2557, 12785

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 -12784
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 12785 can be divided by 4 positive divisors. The sum of these divisors (counting 12785) is 1, the average is 0.25.

Base conversion 12785

Base System Value
2 Binary 11000111110001
3 Ternary 122112112
4 Quaternary 3013301
5 Quinary 402120
6 Senary 135105
8 Octal 30761
10 Decimal 12785
12 Duodecimal 7495
16 Hexadecimal 31f1
20 Vigesimal 1bj5
36 Base36 9v5

Cryptographic Hash Functions

md5 bb4b90201e39e55c4a9ccfec8436cfb8
sha1 43df0e31c9732e6989c3ef3ee263e47f35467749
sha256 dc8feef608bbce2821e57f7d3e6afcd16fbc70b6f6e33f807a49152cd93ba238
sha512 622ae6c70ff36616224be85e748caefa937bacb6a0dc150f0bde1d84522379e5dfa22339f78705c3141cdf2ba8ae366a986746c0b76bb47471d683e942a2ba6b
ripemd-160 0715bb7a71a4f34eaaf2cc70f68fd69fc1d26801

12785 as geometric shapes

Circle

Radius = n
Diameter 25570
Circumference 80330.524152291
Area 513512875.64352

Sphere

Radius = n
Volume 8753682820136.5
Surface area 2054051502.5741
Circumference 80330.524152291

Square

Length = n
Perimeter 51140
Area 163456225
Diagonal 18080.72039494

Cube

Length = n
Surface area 980737350
Volume 2089787836625
Space diagonal 22144.269574768

Equilateral Triangle

Length = n
Perimeter 38355
Area 70778621.628353
Altitude 11072.134787384

Triangular Pyramid

Length = n
Surface area 70778621.628353
Volume 246283858419.78
Height 6026.9067983133