129442905 (number)

129442905 is an odd 9-digits composite number following 129442904 and preceding 129442906. In scientific notation, it is written as 1.29442905 × 10^8. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 69036192 positive integers (up to 129442905) that are relatively prime to 129442905.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million four hundred forty-two thousand nine hundred five

Notation

Scientific notation 1.29442905 × 10^8
Engineering notation 1.29442905 × 10^6

Prime Factorization of 129442905

Prime Factorization 9 × 5 × 2876509

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 129442905
Product of the distinct prime numbers

The prime factorization of 129442905 is 9 × 5 × 2876509. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 4, 86, 51, 278, 829, 8684, 4138, 38663, 16095, 20806, 872953, 3439994, 7637565, 79732336, 55566138, 396858650, 276352209, 293432513, 1084935471

Basic calculations (n = 129442905)

Multiplication

n×y
n×2 258885810
n×3 388328715
n×4 517771620
n×5 647214525

Division

n÷y
n÷2 64721452.5
n÷3 43147635
n÷3 32360726.25
n÷5 25888581

Exponentiation

ny
n2 16755465654839025
n3 2.1688761489901E+24
n4 2.8074562931049E+32
n5 3.6340529824003E+40

Nth Root

y√n
2√n 11377.297789897
3√n 505.8550426579
4√n 106.66441669975
5√n 41.919457171284

Divisors of 129442905

1, 5, 9, 45, 2876509, 14382545, 25888581, 129442905

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 -129442904
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 129442905 can be divided by 8 positive divisors. The sum of these divisors (counting 129442905) is 1, the average is 0.125.

Base conversion 129442905

Base System Value
2 Binary 111101101110010010001011001
3 Ternary 100000120101021200
4 Quaternary 13231302101121
5 Quinary 231114133110
6 Senary 20502224413
8 Octal 755622131
10 Decimal 129442905
12 Duodecimal 37425109
16 Hexadecimal 7b72459
20 Vigesimal 2090755
36 Base36 252es9

Cryptographic Hash Functions

md5 fc12c7beb90e528a5a6055579d383804
sha1 6ba8f6a4079f54949148fb91ff8263109008d808
sha256 98e23b4fa3e01484377b0691627d6f91a345e6e1afc305e60db664af74972e7d
sha512 2a774e42097af37ae05f707c0972cb877e4f01d6d3e518d280339a67c47ae10aa27da27df00a3994263f1ba9a91215f0aa720825dc3d08679a8e6322a5f2bed3
ripemd-160 7f3c496d17dc0584ef40d4b3b5eccdc964b607d5

129442905 as geometric shapes

Circle

Radius = n
Diameter 258885810
Circumference 813313758.81464
Area 5.2638847808718E+16

Sphere

Radius = n
Volume 9.0849671682845E+24
Surface area 2.1055539123487E+17
Circumference 813313758.81464

Square

Length = n
Perimeter 517771620
Area 16755465654839025
Diagonal 183059911.80397

Cube

Length = n
Surface area 100532793929034150
Volume 2.1688761489901E+24
Space diagonal 224201688.13931

Equilateral Triangle

Length = n
Perimeter 388328715
Area 7.2553294546641E+15
Altitude 112100844.06966

Triangular Pyramid

Length = n
Surface area 7.2553294546641E+15
Volume 2.5560450541744E+23
Height 61019970.601324