128439729 (number)

128439729 is an odd 9-digits composite number following 128439728 and preceding 128439730. In scientific notation, it is written as 1.28439729 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 16 positive divisors. There are 77842080 positive integers (up to 128439729) that are relatively prime to 128439729.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred thirty-nine thousand seven hundred twenty-nine

Notation

Scientific notation 1.28439729 × 10^8
Engineering notation 1.28439729 × 10^6

Prime Factorization of 128439729

Prime Factorization 3 × 3 × 3 × 11 × 432457

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14271081
Product of the distinct prime numbers

The prime factorization of 128439729 is 3 × 3 × 3 × 11 × 432457. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 7, 81, 92, 580, 430, 7768, 2276, 51693, 1627, 169889, 211472, 1660028, 1800294, 6660005, 3164587, 12799069, 845992537, 5446972910, 2906318916

Basic calculations (n = 128439729)

Multiplication

n×y
n×2 256879458
n×3 385319187
n×4 513758916
n×5 642198645

Division

n÷y
n÷2 64219864.5
n÷3 42813243
n÷3 32109932.25
n÷5 25687945.8

Exponentiation

ny
n2 16496763985593441
n3 2.1188398956866E+24
n4 2.7214322199637E+32
n5 3.4954001682401E+40

Nth Root

y√n
2√n 11333.12529711
3√n 504.5448685032
4√n 106.45715239997
5√n 41.854280072472

Divisors of 128439729

1, 3, 9, 11, 27, 33, 99, 297, 432457, 1297371, 3892113, 4757027, 11676339, 14271081, 42813243, 128439729

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128439728
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128439729 can be divided by 16 positive divisors. The sum of these divisors (counting 128439729) is 1, the average is 0.0625.

Base conversion 128439729

Base System Value
2 Binary 111101001111101010110110001
3 Ternary 22221200102012000
4 Quaternary 13221331112301
5 Quinary 230340032404
6 Senary 20424524213
8 Octal 751752661
10 Decimal 128439729
12 Duodecimal 37020669
16 Hexadecimal 7a7d5b1
20 Vigesimal 202ej69
36 Base36 24gwq9

Cryptographic Hash Functions

md5 aaeff0bf46423cc049e1ae523442cd03
sha1 04d300ed0ff2dae1945c403cc7b3d14f3c5074fc
sha256 1661727747508dd084561a91c0bc39dcbc17ee5c8210809b347d26b725433ceb
sha512 6aafcf52d8b5fd6b1128c6c2a1be593d7b4e2a8a29cec0946b712437d35adbcfc227932586565932e61dc677e86f87659b64f6317cad007b5e91446fa8d5cea5
ripemd-160 332ae6577d8c1dad3cd3385a23a03ea9f32d7ced

128439729 as geometric shapes

Circle

Radius = n
Diameter 256879458
Circumference 807010618.11093
Area 5.1826112545145E+16

Sphere

Radius = n
Volume 8.8753758005626E+24
Surface area 2.0730445018058E+17
Circumference 807010618.11093

Square

Length = n
Perimeter 513758916
Area 16496763985593441
Diagonal 181641206.69932

Cube

Length = n
Surface area 98980583913560646
Volume 2.1188398956866E+24
Space diagonal 222464136.33838

Equilateral Triangle

Length = n
Perimeter 385319187
Area 7.1433083458801E+15
Altitude 111232068.16919

Triangular Pyramid

Length = n
Surface area 7.1433083458801E+15
Volume 2.4970767641476E+23
Height 60547068.899775