12345 (number)

12345 is an odd 5-digits composite number following 12344 and preceding 12346. In scientific notation, it is written as 1.2345 × 10^4. The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors. There are 6576 positive integers (up to 12345) that are relatively prime to 12345.

Interesting facts

Basic properties

Name

Name twelve thousand three hundred forty-five

Notation

Scientific notation 1.2345 × 10^4
Engineering notation 1.2345 × 10^3

Prime Factorization of 12345

Prime Factorization 3 × 5 × 823

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12345
Product of the distinct prime numbers

The prime factorization of 12345 is 3 × 5 × 823. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 30, 46, 848, 233, 7921, 7335, 57272, 15794, 279769, 848829, 8925201, 3439083, 35651723, 72460965, 872828109, 860991100, 7250288771, 8782634148

Basic calculations (n = 12345)

Multiplication

n×y
n×2 24690
n×3 37035
n×4 49380
n×5 61725

Division

n÷y
n÷2 6172.5
n÷3 4115
n÷3 3086.25
n÷5 2469

Exponentiation

ny
n2 152399025
n3 1881365963625
n4 23225462820950625
n5 2.8671833852464E+20

Nth Root

y√n
2√n 111.10805551354
3√n 23.111618749807
4√n 10.540780593179
5√n 6.5810958916722

Divisors of 12345

1, 3, 5, 15, 823, 2469, 4115, 12345

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 -12344
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 12345 can be divided by 8 positive divisors. The sum of these divisors (counting 12345) is 1, the average is 0.125.

Base conversion 12345

Base System Value
2 Binary 11000000111001
3 Ternary 121221020
4 Quaternary 3000321
5 Quinary 343340
6 Senary 133053
8 Octal 30071
10 Decimal 12345
12 Duodecimal 7189
16 Hexadecimal 3039
20 Vigesimal 1ah5
36 Base36 9ix

Cryptographic Hash Functions

md5 827ccb0eea8a706c4c34a16891f84e7b
sha1 8cb2237d0679ca88db6464eac60da96345513964
sha256 5994471abb01112afcc18159f6cc74b4f511b99806da59b3caf5a9c173cacfc5
sha512 3627909a29c31381a071ec27f7c9ca97726182aed29a7ddd2e54353322cfb30abb9e3a6df2ac2c20fe23436311d678564d0c8d305930575f60e2d3d048184d79
ripemd-160 e9cbd2ea8015a084ce9cf83a3c65b51f8fa10a39

12345 as geometric shapes

Circle

Radius = n
Diameter 24690
Circumference 77565.922617132
Area 478775657.35425

Sphere

Radius = n
Volume 7880647320050.9
Surface area 1915102629.417
Circumference 77565.922617132

Square

Length = n
Perimeter 49380
Area 152399025
Diagonal 17458.466427496

Cube

Length = n
Surface area 914394150
Volume 1881365963625
Space diagonal 21382.167219438

Equilateral Triangle

Length = n
Perimeter 37035
Area 65990713.58099
Altitude 10691.083609719

Triangular Pyramid

Length = n
Surface area 65990713.58099
Volume 221721105128.8
Height 5819.4888091653