128215857 (number)

128215857 is an odd 9-digits composite number following 128215856 and preceding 128215858. In scientific notation, it is written as 1.28215857 × 10^8. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 62337600 positive integers (up to 128215857) that are relatively prime to 128215857.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred fifteen thousand eight hundred fifty-seven

Notation

Scientific notation 1.28215857 × 10^8
Engineering notation 1.28215857 × 10^6

Prime Factorization of 128215857

Prime Factorization 627 × 7 × 131 × 223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128215857
Product of the distinct prime numbers

The prime factorization of 128215857 is 627 × 7 × 131 × 223. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128215857)

Multiplication

n×y
n×2 256431714
n×3 384647571
n×4 512863428
n×5 641079285

Division

n÷y
n÷2 64107928.5
n÷3 42738619
n÷3 32053964.25
n÷5 25643171.4

Exponentiation

ny
n2 16439305986244449
n3 2.1077797055116E+24
n4 2.7025078130937E+32
n5 3.4650435530501E+40

Nth Root

y√n
2√n 11323.244102288
3√n 504.25155541977
4√n 106.41073302204
5√n 41.839679386046

Divisors of 128215857

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 -128215856
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 128215857 can be divided by 16 positive divisors. The sum of these divisors (counting 128215857) is 1, the average is 0.0625.

Base conversion 128215857

Base System Value
2 Binary 111101001000110101100110001
3 Ternary 22221021001002110
4 Quaternary 13221012230301
5 Quinary 230310401412
6 Senary 20420035533
8 Octal 751065461
10 Decimal 128215857
12 Duodecimal 36b32ba9
16 Hexadecimal 7a46b31
20 Vigesimal 2016jch
36 Base36 24c3zl

Cryptographic Hash Functions

md5 f8fa5e2de1c70d2d7609d393139d5b86
sha1 056968090b6ecbe210627d91c9dae2c80a0d0021
sha256 7c6c500f7be8cc6b019968729cc8103487a7ef2c3d5ac7c11b88a31810ccb8c1
sha512 96a588177faa183bf66f55f0fcc0b16e405c848e5f836f6c23f050435712f4e4e536fda05baaf113d33f251d4e674207a27ad2367f63a42066777d46e982e674
ripemd-160 1b6c0462a7a5a3f3d5d5024fb56bad43aec174c1

128215857 as geometric shapes

Circle

Radius = n
Diameter 256431714
Circumference 805603988.84984
Area 5.16456029165E+16

Sphere

Radius = n
Volume 8.8290469842944E+24
Surface area 2.06582411666E+17
Circumference 805603988.84984

Square

Length = n
Perimeter 512863428
Area 16439305986244449
Diagonal 181324603.88069

Cube

Length = n
Surface area 98635835917466694
Volume 2.1077797055116E+24
Space diagonal 222076378.65999

Equilateral Triangle

Length = n
Perimeter 384647571
Area 7.1184283023366E+15
Altitude 111038189.32999

Triangular Pyramid

Length = n
Surface area 7.1184283023366E+15
Volume 2.4840422050243E+23
Height 60441534.626896