128997645 (number)

128997645 is an odd 9-digits composite number following 128997644 and preceding 128997646. In scientific notation, it is written as 1.28997645 × 10^8. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 58670976 positive integers (up to 128997645) that are relatively prime to 128997645.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred ninety-seven thousand six hundred forty-five

Notation

Scientific notation 1.28997645 × 10^8
Engineering notation 1.28997645 × 10^6

Prime Factorization of 128997645

Prime Factorization 245 × 3 × 599 × 293

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128997645
Product of the distinct prime numbers

The prime factorization of 128997645 is 245 × 3 × 599 × 293. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 89, 53, 11, 916, 8370, 3908, 79578, 7475, 398582, 383281, 9631497, 2948144, 38140344, 30883730, 444336660, 786708325, 7260208267, 9633088934

Basic calculations (n = 128997645)

Multiplication

n×y
n×2 257995290
n×3 386992935
n×4 515990580
n×5 644988225

Division

n÷y
n÷2 64498822.5
n÷3 42999215
n÷3 32249411.25
n÷5 25799529

Exponentiation

ny
n2 16640392415546025
n3 2.1465714334813E+24
n4 2.7690265974336E+32
n5 3.571979100113E+40

Nth Root

y√n
2√n 11357.713018033
3√n 505.27435995186
4√n 106.5725716028
5√n 41.890578350324

Divisors of 128997645

1, 3, 245, 293, 599, 735, 879, 1797, 71785, 146755, 175507, 215355, 440265, 526521, 42999215, 128997645

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 -128997644
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 128997645 can be divided by 16 positive divisors. The sum of these divisors (counting 128997645) is 1, the average is 0.0625.

Base conversion 128997645

Base System Value
2 Binary 111101100000101100100001101
3 Ternary 22222201202111120
4 Quaternary 13230011210031
5 Quinary 231010411040
6 Senary 20444511153
8 Octal 754054415
10 Decimal 128997645
12 Duodecimal 3724b4b9
16 Hexadecimal 7b0590d
20 Vigesimal 2064e25
36 Base36 24sv7x

Cryptographic Hash Functions

md5 7e7a14e87d3be06e70acf732e4938977
sha1 9332594731851a9b664dcf8b12e0f810af94a794
sha256 f25727a348ace9684f959beec4c9d0bad8366694b265a8c4560f833ee780becc
sha512 e34360d121e48dbfad0d00d0e915f161b8fa9fd423ef146529bfe36d7042f0dba89c806e397769745dc371bd5ded58957d18bbbc26261181bb687c6091decace
ripemd-160 5613720da673411efa643425d8343dbc9ccedb8b

128997645 as geometric shapes

Circle

Radius = n
Diameter 257995290
Circumference 810516107.72477
Area 5.2277334565531E+16

Sphere

Radius = n
Volume 8.9915373944407E+24
Surface area 2.0910933826212E+17
Circumference 810516107.72477

Square

Length = n
Perimeter 515990580
Area 16640392415546025
Diagonal 182430219.07319

Cube

Length = n
Surface area 99842354493276150
Volume 2.1465714334813E+24
Space diagonal 223430475.19673

Equilateral Triangle

Length = n
Perimeter 386992935
Area 7.2055012804024E+15
Altitude 111715237.59837

Triangular Pyramid

Length = n
Surface area 7.2055012804024E+15
Volume 2.5297586948599E+23
Height 60810073.024397