123985 (number)

123985 is an odd 6-digits composite number following 123984 and preceding 123986. In scientific notation, it is written as 1.23985 × 10^5. The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors. There are 97920 positive integers (up to 123985) that are relatively prime to 123985.

Interesting facts

Basic properties

Name

Name one hundred twenty-three thousand nine hundred eighty-five

Notation

Scientific notation 1.23985 × 10^5
Engineering notation 1.23985 × 10^3

Prime Factorization of 123985

Prime Factorization 5 × 181 × 137

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 123985
Product of the distinct prime numbers

The prime factorization of 123985 is 5 × 181 × 137. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 123985)

Multiplication

n×y
n×2 247970
n×3 371955
n×4 495940
n×5 619925

Division

n÷y
n÷2 61992.5
n÷3 41328.333333333
n÷3 30996.25
n÷5 24797

Exponentiation

ny
n2 15372280225
n3 1905932163696625
n4 2.3630699931593E+20
n5 2.9298523310185E+25

Nth Root

y√n
2√n 352.11503802025
3√n 49.864298703016
4√n 18.764728562392
5√n 10.439358914434

Divisors of 123985

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 -123984
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 123985 can be divided by 8 positive divisors. The sum of these divisors (counting 123985) is 1, the average is 0.125.

Base conversion 123985

Base System Value
2 Binary 11110010001010001
3 Ternary 20022002001
4 Quaternary 132101101
5 Quinary 12431420
6 Senary 2354001
8 Octal 362121
10 Decimal 123985
12 Duodecimal 5b901
16 Hexadecimal 1e451
20 Vigesimal f9j5
36 Base36 2no1

Cryptographic Hash Functions

md5 8f3a708fa945c5fb828b78d5a556580d
sha1 93f2bb50b3ab2d67ad6e043560f6a7063dd6e3b0
sha256 21ed59dd691e40e34bfbc4e1861c37bd0c507495f1989b0a131c74f65c039684
sha512 d6452a2f139ce6e28d4966ab29d5b344559d598cc5603fec262075b9d88ea069192da158230606bd79aab57a2b2291d02194d05151b1067b2235f2fe46ae7a41
ripemd-160 22b21a708afe3670a162e20adaf6a80450fcb005

123985 as geometric shapes

Circle

Radius = n
Diameter 247970
Circumference 779020.73031066
Area 48293442623.784

Sphere

Radius = n
Volume 7.9835499782798E+15
Surface area 193173770495.13
Circumference 779020.73031066

Square

Length = n
Perimeter 495940
Area 15372280225
Diagonal 175341.26853083

Cube

Length = n
Surface area 92233681350
Volume 1905932163696625
Space diagonal 214748.31937643

Equilateral Triangle

Length = n
Perimeter 371955
Area 6656392594.4716
Altitude 107374.15968821

Triangular Pyramid

Length = n
Surface area 6656392594.4716
Volume 2.2461625957191E+14
Height 58447.089510276