128972646 (number)

128972646 is an even 9-digits composite number following 128972645 and preceding 128972647. In scientific notation, it is written as 1.28972646 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 37024560 positive integers (up to 128972646) that are relatively prime to 128972646.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred seventy-two thousand six hundred forty-six

Notation

Scientific notation 1.28972646 × 10^8
Engineering notation 1.28972646 × 10^6

Prime Factorization of 128972646

Prime Factorization 2 × 209 × 9 × 34283

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128972646
Product of the distinct prime numbers

The prime factorization of 128972646 is 2 × 209 × 9 × 34283. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128972646)

Multiplication

n×y
n×2 257945292
n×3 386917938
n×4 515890584
n×5 644863230

Division

n÷y
n÷2 64486323
n÷3 42990882
n÷3 32243161.5
n÷5 25794529.2

Exponentiation

ny
n2 16633943416241316
n3 2.1453236958069E+24
n4 2.7668807357472E+32
n5 3.5685192965574E+40

Nth Root

y√n
2√n 11356.612435053
3√n 505.2417180904
4√n 106.56740794001
5√n 41.888954593927

Divisors of 128972646

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 -128972645
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 128972646 can be divided by 16 positive divisors. The sum of these divisors (counting 128972646) is 1, the average is 0.0625.

Base conversion 128972646

Base System Value
2 Binary 111101011111111011101100110
3 Ternary 22222200111012200
4 Quaternary 13223333131212
5 Quinary 231004111041
6 Senary 20444155330
8 Octal 753773546
10 Decimal 128972646
12 Duodecimal 37238b46
16 Hexadecimal 7aff766
20 Vigesimal 2061bc6
36 Base36 24sbxi

Cryptographic Hash Functions

md5 17a90ad9e07b921dd024928c1e41b90d
sha1 ff60d443c3b3356516d5db82ea6c75c18560161b
sha256 377612faa74e6d4814f41d2b2cf1be8ed2a5238b2726f5584a9fb87c13ffd7fb
sha512 6ed9c1c2028680b949c91ff162d703598022588a60cf67863fd46cf87333da2efc3f8574b18e604bc6a520c9877a8f5a66057b7039057e54d6db591281ac403a
ripemd-160 c6bcc7ddffa27aef7cd4dd47f533f706355317f6

128972646 as geometric shapes

Circle

Radius = n
Diameter 257945292
Circumference 810359034.37527
Area 5.2257074436692E+16

Sphere

Radius = n
Volume 8.9863108830922E+24
Surface area 2.0902829774677E+17
Circumference 810359034.37527

Square

Length = n
Perimeter 515890584
Area 16633943416241316
Diagonal 182394865.14834

Cube

Length = n
Surface area 99803660497447896
Volume 2.1453236958069E+24
Space diagonal 223387175.65859

Equilateral Triangle

Length = n
Perimeter 386917938
Area 7.2027087817889E+15
Altitude 111693587.8293

Triangular Pyramid

Length = n
Surface area 7.2027087817889E+15
Volume 2.5282882219088E+23
Height 60798288.382781