128216391 (number)

128216391 is an odd 9-digits composite number following 128216390 and preceding 128216392. In scientific notation, it is written as 1.28216391 × 10^8. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 85371840 positive integers (up to 128216391) that are relatively prime to 128216391.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred sixteen thousand three hundred ninety-one

Notation

Scientific notation 1.28216391 × 10^8
Engineering notation 1.28216391 × 10^6

Prime Factorization of 128216391

Prime Factorization 3 × 821 × 52057

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128216391
Product of the distinct prime numbers

The prime factorization of 128216391 is 3 × 821 × 52057. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128216391)

Multiplication

n×y
n×2 256432782
n×3 384649173
n×4 512865564
n×5 641081955

Division

n÷y
n÷2 64108195.5
n÷3 42738797
n÷3 32054097.75
n÷5 25643278.2

Exponentiation

ny
n2 16439442921064881
n3 2.1078060413894E+24
n4 2.7025528355495E+32
n5 3.4651157106097E+40

Nth Root

y√n
2√n 11323.267682078
3√n 504.25225546308
4√n 106.41084381809
5√n 41.839714237198

Divisors of 128216391

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 -128216390
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 128216391 can be divided by 8 positive divisors. The sum of these divisors (counting 128216391) is 1, the average is 0.125.

Base conversion 128216391

Base System Value
2 Binary 111101001000110110101000111
3 Ternary 22221021001211020
4 Quaternary 13221012311013
5 Quinary 230310411031
6 Senary 20420042223
8 Octal 751066507
10 Decimal 128216391
12 Duodecimal 36b33373
16 Hexadecimal 7a46d47
20 Vigesimal 20170jb
36 Base36 24c4ef

Cryptographic Hash Functions

md5 9637caf5f8be8328ccccb479b291d09a
sha1 c5cf3567922eb6f44295ba85cd70bdb559a1037f
sha256 30348e1b5dbb395cc0e54617a522d6c2cdc4ba7c5a528ef5e5c7dd495a29afbe
sha512 36064692b3ca32153dc0dac938b3c2544457743dde687304a34733163bc16734735b0dcac57c8ad02d15e3d2a74c041af1909a966fa52560102d1a136ec75d85
ripemd-160 077f3de0cc158206d682f6df0e87380563997784

128216391 as geometric shapes

Circle

Radius = n
Diameter 256432782
Circumference 805607344.07079
Area 5.1646033109926E+16

Sphere

Radius = n
Volume 8.8291572997617E+24
Surface area 2.065841324397E+17
Circumference 805607344.07079

Square

Length = n
Perimeter 512865564
Area 16439442921064881
Diagonal 181325359.07073

Cube

Length = n
Surface area 98636657526389286
Volume 2.1078060413894E+24
Space diagonal 222077303.57512

Equilateral Triangle

Length = n
Perimeter 384649173
Area 7.1184875968532E+15
Altitude 111038651.78756

Triangular Pyramid

Length = n
Surface area 7.1184875968532E+15
Volume 2.4840732421541E+23
Height 60441786.356911