128698731 (number)

128698731 is an odd 9-digits composite number following 128698730 and preceding 128698732. In scientific notation, it is written as 1.28698731 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors. There are 70343856 positive integers (up to 128698731) that are relatively prime to 128698731.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred ninety-eight thousand seven hundred thirty-one

Notation

Scientific notation 1.28698731 × 10^8
Engineering notation 1.28698731 × 10^6

Prime Factorization of 128698731

Prime Factorization 3 × 3 × 7 × 23 × 88819

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 42899577
Product of the distinct prime numbers

The prime factorization of 128698731 is 3 × 3 × 7 × 23 × 88819. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 8, 26, 79, 972, 611, 6740, 2803, 65829, 91508, 643700, 450077, 6276565, 3111996, 25020840, 37116589, 68066140, 317737106, 8941352342, 8563267565

Basic calculations (n = 128698731)

Multiplication

n×y
n×2 257397462
n×3 386096193
n×4 514794924
n×5 643493655

Division

n÷y
n÷2 64349365.5
n÷3 42899577
n÷3 32174682.75
n÷5 25739746.2

Exponentiation

ny
n2 16563363361010361
n3 2.1316838456539E+24
n4 2.7434500582886E+32
n5 3.5307854106362E+40

Nth Root

y√n
2√n 11344.546310893
3√n 504.88378334086
4√n 106.51078025671
5√n 41.871146518649

Divisors of 128698731

1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 88819, 266457, 621733, 799371, 1865199, 2042837, 5595597, 6128511, 14299859, 18385533, 42899577, 128698731

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128698730
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128698731 can be divided by 24 positive divisors. The sum of these divisors (counting 128698731) is 1, the average is 0.041666666666667.

Base conversion 128698731

Base System Value
2 Binary 111101010111100100101101011
3 Ternary 22222011120110200
4 Quaternary 13222330211223
5 Quinary 230421324411
6 Senary 20434243243
8 Octal 752744553
10 Decimal 128698731
12 Duodecimal 37126523
16 Hexadecimal 7abc96b
20 Vigesimal 20476gb
36 Base36 24mgkr

Cryptographic Hash Functions

md5 dc69a27ae412ba91295ee45c30b72bba
sha1 6545cc89d79333596e76c528dc07dee45d5ba381
sha256 9e5f57491bcac96945aaef1862ae66ee8f2abf310e4ec13f38784e06c8fe8a5e
sha512 45297251957536fdb62cc1e9ffd197df91df8529133922d729ea128d7a578af282ab48746e93559c88375ea7a622f7ad43b359f6e15e12e204fa4c43f56c6a71
ripemd-160 2fba1759d73e7264d7eac880cf383ef15eaf95e9

128698731 as geometric shapes

Circle

Radius = n
Diameter 257397462
Circumference 808637975.67186
Area 5.2035340653688E+16

Sphere

Radius = n
Volume 8.9291764123766E+24
Surface area 2.0814136261475E+17
Circumference 808637975.67186

Square

Length = n
Perimeter 514794924
Area 16563363361010361
Diagonal 182007490.84041

Cube

Length = n
Surface area 99380180166062166
Volume 2.1316838456539E+24
Space diagonal 222912740.96164

Equilateral Triangle

Length = n
Perimeter 386096193
Area 7.1721467213737E+15
Altitude 111456370.48082

Triangular Pyramid

Length = n
Surface area 7.1721467213737E+15
Volume 2.5122135043462E+23
Height 60669163.613469