129397891 (number)

129397891 is an odd 9-digits composite number following 129397890 and preceding 129397892. In scientific notation, it is written as 1.29397891 × 10^8. The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors. There are 110912472 positive integers (up to 129397891) that are relatively prime to 129397891.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million three hundred ninety-seven thousand eight hundred ninety-one

Notation

Scientific notation 1.29397891 × 10^8
Engineering notation 1.29397891 × 10^6

Prime Factorization of 129397891

Prime Factorization 7 × 18485413

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 129397891
Product of the distinct prime numbers

The prime factorization of 129397891 is 7 × 18485413. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 8, 35, 16, 456, 996, 6241, 9860, 50504, 48595, 935224, 506896, 1991234, 6805574, 14253303, 44121924, 804045930, 420606318, 6207451082, 9143833611

Basic calculations (n = 129397891)

Multiplication

n×y
n×2 258795782
n×3 388193673
n×4 517591564
n×5 646989455

Division

n÷y
n÷2 64698945.5
n÷3 43132630.333333
n÷3 32349472.75
n÷5 25879578.2

Exponentiation

ny
n2 16743814195247881
n3 2.1666142441609E+24
n4 2.8035531380498E+32
n5 3.6277386337008E+40

Nth Root

y√n
2√n 11375.319380132
3√n 505.79639852981
4√n 106.65514230515
5√n 41.916541252521

Divisors of 129397891

1, 7, 18485413, 129397891

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -129397890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 129397891 can be divided by 4 positive divisors. The sum of these divisors (counting 129397891) is 1, the average is 0.25.

Base conversion 129397891

Base System Value
2 Binary 111101101100111010010000011
3 Ternary 100000111002112111
4 Quaternary 13231213102003
5 Quinary 231111213031
6 Senary 20501240151
8 Octal 755472203
10 Decimal 129397891
12 Duodecimal 37403057
16 Hexadecimal 7b67483
20 Vigesimal 208eeeb
36 Base36 251g1v

Cryptographic Hash Functions

md5 6f41a634f45311b5faecc590db648bb8
sha1 b6341403740491be017ac23ba7e14a660ff3cbe2
sha256 52b465bc87371b8d25e9d64ce12cd9086bc0a6853150e92ce137af2ea5a70d8c
sha512 e49b88da619ef23debb680efb6f466429f9e2ee9b48b451d8b799e98ed090c748bea286b7fb9fd7798642aef49f15d1bf966fbdaf4386a96d9ed37bb7526c377
ripemd-160 f6f53ca37db711208a4e986d4fe300f22382b4fd

129397891 as geometric shapes

Circle

Radius = n
Diameter 258795782
Circumference 813030927.51123
Area 5.2602243668863E+16

Sphere

Radius = n
Volume 9.075492523492E+24
Surface area 2.1040897467545E+17
Circumference 813030927.51123

Square

Length = n
Perimeter 517591564
Area 16743814195247881
Diagonal 182996252.39468

Cube

Length = n
Surface area 100462885171487286
Volume 2.1666142441609E+24
Space diagonal 224123721.60426

Equilateral Triangle

Length = n
Perimeter 388193673
Area 7.2502842246656E+15
Altitude 112061860.80213

Triangular Pyramid

Length = n
Surface area 7.2502842246656E+15
Volume 2.5533793737693E+23
Height 60998750.798225