128676821 (number)

128676821 is an odd 9-digits composite number following 128676820 and preceding 128676822. In scientific notation, it is written as 1.28676821 × 10^8. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 101810160 positive integers (up to 128676821) that are relatively prime to 128676821.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred seventy-six thousand eight hundred twenty-one

Notation

Scientific notation 1.28676821 × 10^8
Engineering notation 1.28676821 × 10^6

Prime Factorization of 128676821

Prime Factorization 91 × 1414031

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128676821
Product of the distinct prime numbers

The prime factorization of 128676821 is 91 × 1414031. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 28, 70, 345, 62, 2241, 2263, 75721, 38055, 612382, 795984, 7240664, 1562365, 38479371, 9480715, 513011811, 602700588, 8288551440, 5858563585

Basic calculations (n = 128676821)

Multiplication

n×y
n×2 257353642
n×3 386030463
n×4 514707284
n×5 643384105

Division

n÷y
n÷2 64338410.5
n÷3 42892273.666667
n÷3 32169205.25
n÷5 25735364.2

Exponentiation

ny
n2 16557724262666041
n3 2.1305953211144E+24
n4 2.7415823275848E+32
n5 3.5277809842339E+40

Nth Root

y√n
2√n 11343.580607551
3√n 504.85513081412
4√n 106.5062468006
5√n 41.869720771416

Divisors of 128676821

1, 91, 1414031, 128676821

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 -128676820
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 128676821 can be divided by 4 positive divisors. The sum of these divisors (counting 128676821) is 1, the average is 0.25.

Base conversion 128676821

Base System Value
2 Binary 111101010110111001111010101
3 Ternary 22222010110102012
4 Quaternary 13222313033111
5 Quinary 230420124241
6 Senary 20433554005
8 Octal 752671725
10 Decimal 128676821
12 Duodecimal 37115905
16 Hexadecimal 7ab73d5
20 Vigesimal 2044c11
36 Base36 24lzo5

Cryptographic Hash Functions

md5 9fd0c55c20a902305f63a8f37afea232
sha1 575a5347aef886ec531e1d15c2599d319530a050
sha256 6880b7f9d68b7d1d0d09dfae3428662ac890fff9dfd9dfd35c2d981eb859e52d
sha512 62afd26c67333a5c1cdb816ee29602c55b63b4459f693b619b90156fbaedc38ed428279418b21b4b5defcf1c0c709bfb55a8bcb29f51858a5a7c6df74f5afb62
ripemd-160 78bc8eb856997e7f7315c5a3cfeb39c85a6fc8ae

128676821 as geometric shapes

Circle

Radius = n
Diameter 257353642
Circumference 808500311.08178
Area 5.2017624903757E+16

Sphere

Radius = n
Volume 8.9246168114479E+24
Surface area 2.0807049961503E+17
Circumference 808500311.08178

Square

Length = n
Perimeter 514707284
Area 16557724262666041
Diagonal 181976505.42126

Cube

Length = n
Surface area 99346345575996246
Volume 2.1305953211144E+24
Space diagonal 222874791.72845

Equilateral Triangle

Length = n
Perimeter 386030463
Area 7.1697049201634E+15
Altitude 111437395.86422

Triangular Pyramid

Length = n
Surface area 7.1697049201634E+15
Volume 2.5109306658739E+23
Height 60658835.140418