129291281 (number)

129291281 is an odd 9-digits composite number following 129291280 and preceding 129291282. In scientific notation, it is written as 1.29291281 × 10^8. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 110719440 positive integers (up to 129291281) that are relatively prime to 129291281.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million two hundred ninety-one thousand two hundred eighty-one

Notation

Scientific notation 1.29291281 × 10^8
Engineering notation 1.29291281 × 10^6

Prime Factorization of 129291281

Prime Factorization 7 × 1171 × 15773

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 129291281
Product of the distinct prime numbers

The prime factorization of 129291281 is 7 × 1171 × 15773. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 8, 17, 63, 567, 976, 807, 8261, 56787, 71314, 831607, 849319, 4161490, 3235207, 30794524, 11578378, 205293635, 249770556, 2770568287, 3654743010

Basic calculations (n = 129291281)

Multiplication

n×y
n×2 258582562
n×3 387873843
n×4 517165124
n×5 646456405

Division

n÷y
n÷2 64645640.5
n÷3 43097093.666667
n÷3 32322820.25
n÷5 25858256.2

Exponentiation

ny
n2 16716235342620961
n3 2.1612634809449E+24
n4 2.7943252402989E+32
n5 3.6128188984888E+40

Nth Root

y√n
2√n 11370.632392264
3√n 505.657453015
4√n 106.63316741176
5√n 41.909632027252

Divisors of 129291281

1, 7, 1171, 8197, 15773, 110411, 18470183, 129291281

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 -129291280
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 129291281 can be divided by 8 positive divisors. The sum of these divisors (counting 129291281) is 1, the average is 0.125.

Base conversion 129291281

Base System Value
2 Binary 111101101001101010000010001
3 Ternary 100000021200021222
4 Quaternary 13231031100101
5 Quinary 231044310111
6 Senary 20455054425
8 Octal 755152021
10 Decimal 129291281
12 Duodecimal 37371415
16 Hexadecimal 7b4d411
20 Vigesimal 2081841
36 Base36 24z5sh

Cryptographic Hash Functions

md5 61a9db6b2c432977d281e2d068556270
sha1 f695602ba3e85cb47f615af78afd6ec47d5e7eb4
sha256 26a54fbf19d5a5051507e5df5792fc5b272202b8b2853097c4c0aec48ffdf8cc
sha512 a3e9eabcda94ce4519ceda80fe3466120f665120ba41f282bf2ac5dc880c04402f594c30262f24ca26a0a12c624854b3f268e5ed7776fa66e08d46cb03976487
ripemd-160 4f79f0839a96f43cd42db00e8257b793c6134880

129291281 as geometric shapes

Circle

Radius = n
Diameter 258582562
Circumference 812361077.12563
Area 5.2515602148056E+16

Sphere

Radius = n
Volume 9.0530792989447E+24
Surface area 2.1006240859222E+17
Circumference 812361077.12563

Square

Length = n
Perimeter 517165124
Area 16716235342620961
Diagonal 182845483.08679

Cube

Length = n
Surface area 100297412055725766
Volume 2.1612634809449E+24
Space diagonal 223939067.66766

Equilateral Triangle

Length = n
Perimeter 387873843
Area 7.2383422311745E+15
Altitude 111969533.83383

Triangular Pyramid

Length = n
Surface area 7.2383422311745E+15
Volume 2.547073438845E+23
Height 60948494.362264