123840 (number)

123840 is an even 6-digits composite number following 123839 and preceding 123841. In scientific notation, it is written as 1.23840 × 10^5. The sum of its digits is 18. It has a total of 9 prime factors and 56 positive divisors. There are 32256 positive integers (up to 123840) that are relatively prime to 123840.

Interesting facts

Basic properties

Name

Name one hundred twenty-three thousand eight hundred forty

Notation

Scientific notation 1.23840 × 10^5
Engineering notation 1.23840 × 10^3

Prime Factorization of 123840

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 15 × 3 × 43

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 3870
Product of the distinct prime numbers

The prime factorization of 123840 is 2 × 2 × 2 × 2 × 2 × 2 × 15 × 3 × 43. Since it has a total of 9 prime factors.

Most popular turbo-numbers

2, 6, 70, 35, 580, 24, 437, 5966, 61466, 32160, 977120, 456804, 905573, 9712174, 64119033, 76876858, 652635902, 819550859, 8080283064, 1394067396

Basic calculations (n = 123840)

Multiplication

n×y
n×2 247680
n×3 371520
n×4 495360
n×5 619200

Division

n÷y
n÷2 61920
n÷3 41280
n÷3 30960
n÷5 24768

Exponentiation

ny
n2 15336345600
n3 1899253039104000
n4 2.3520349636264E+20
n5 2.9127600989549E+25

Nth Root

y√n
2√n 351.90907916676
3√n 49.844852415812
4√n 18.759239834459
5√n 10.436916013035

Divisors of 123840

1, 2, 3, 4, 6, 8, 12, 15, 16, 24, 30, 32, 43, 45, 48, 60, 64, 86, 90, 96, 120, 129, 172, 180, 192, 240, 258, 344, 360, 480, 516, 645, 688, 720, 960, 1032, 1290, 1376, 1440, 1935, 2064, 2580, 2752, 2880, 3870, 4128, 5160, 7740, 8256, 10320, 15480, 20640, 30960, 41280, 61920, 123840

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -123839
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 123840 can be divided by 56 positive divisors. The sum of these divisors (counting 123840) is 1, the average is 0.017857142857143.

Base conversion 123840

Base System Value
2 Binary 11110001111000000
3 Ternary 20021212200
4 Quaternary 132033000
5 Quinary 12430330
6 Senary 2353200
8 Octal 361700
10 Decimal 123840
12 Duodecimal 5b800
16 Hexadecimal 1e3c0
20 Vigesimal f9c0
36 Base36 2nk0

Cryptographic Hash Functions

md5 dd1e63160f0e6f600a1a0e1ee9276716
sha1 dbf125ff0abcd853c268818be9f8e67fa51e919e
sha256 3aea534bca67b89886f5e854ba68a75f173d9f5b451afae2a26a46a78af66b70
sha512 5b8bf22c78d45525f13e44df1a7c2c5f8fe2befe2d7d46e2ed10605b2d39e3e0f803d7072f71d660f4a3a1cc902c3aa74135353232952ea4935301ddc7ad69b6
ripemd-160 421fa738cd78a2c0448ed1d83214833b577a62e0

123840 as geometric shapes

Circle

Radius = n
Diameter 247680
Circumference 778109.66844112
Area 48180550669.874

Sphere

Radius = n
Volume 7.9555725266096E+15
Surface area 192722202679.5
Circumference 778109.66844112

Square

Length = n
Perimeter 495360
Area 15336345600
Diagonal 175136.20756428

Cube

Length = n
Surface area 92018073600
Volume 1899253039104000
Space diagonal 214497.17200933

Equilateral Triangle

Length = n
Perimeter 371520
Area 6640832445.4088
Altitude 107248.58600466

Triangular Pyramid

Length = n
Surface area 6640832445.4088
Volume 2.2382911718993E+14
Height 58378.735854761