128972641 (number)

128972641 is an odd 9-digits composite number following 128972640 and preceding 128972642. In scientific notation, it is written as 1.28972641 × 10^8. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 110547972 positive integers (up to 128972641) that are relatively prime to 128972641.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28972641 × 10^8
Engineering notation 1.28972641 × 10^6

Prime Factorization of 128972641

Prime Factorization 7 × 18424663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128972641
Product of the distinct prime numbers

The prime factorization of 128972641 is 7 × 18424663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 52, 86, 615, 281, 7038, 5747, 11616, 77003, 737737, 562829, 4797610, 6554493, 2646335, 22485082, 562795381, 919082565, 4136419310, 4675593595

Basic calculations (n = 128972641)

Multiplication

n×y
n×2 257945282
n×3 386917923
n×4 515890564
n×5 644863205

Division

n÷y
n÷2 64486320.5
n÷3 42990880.333333
n÷3 32243160.25
n÷5 25794528.2

Exponentiation

ny
n2 16633942126514881
n3 2.1453234462978E+24
n4 2.7668803066825E+32
n5 3.5685186048373E+40

Nth Root

y√n
2√n 11356.612214917
3√n 505.24171156134
4√n 106.56740690716
5√n 41.888954269138

Divisors of 128972641

1, 7, 18424663, 128972641

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 -128972640
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 128972641 can be divided by 4 positive divisors. The sum of these divisors (counting 128972641) is 1, the average is 0.25.

Base conversion 128972641

Base System Value
2 Binary 111101011111111011101100001
3 Ternary 22222200111012111
4 Quaternary 13223333131201
5 Quinary 231004111031
6 Senary 20444155321
8 Octal 753773541
10 Decimal 128972641
12 Duodecimal 37238b41
16 Hexadecimal 7aff761
20 Vigesimal 2061bc1
36 Base36 24sbxd

Cryptographic Hash Functions

md5 6454d6d49eddcaefd50c9c34eebcbf70
sha1 b5add747746b33c8304d112a4917ffc4c3100fbc
sha256 d2a1e478f4a6238e3f1d5fc9405dab329c4261d2914277cabd6424ccc7b47809
sha512 72a58f9e80b059ae466a476c3e0afd975ed3f3f6a53ac640ea2ff17e3eea8577a02bb4b4b419dd2d9701ab6e3738aa6ca3917b91f1217863117cf0e74d547f5b
ripemd-160 4f5b5597f7d7405faa29301a1c3696414a53cd02

128972641 as geometric shapes

Circle

Radius = n
Diameter 257945282
Circumference 810359002.95935
Area 5.2257070384897E+16

Sphere

Radius = n
Volume 8.9863098379507E+24
Surface area 2.0902828153959E+17
Circumference 810359002.95935

Square

Length = n
Perimeter 515890564
Area 16633942126514881
Diagonal 182394858.07728

Cube

Length = n
Surface area 99803652759089286
Volume 2.1453234462978E+24
Space diagonal 223387166.99834

Equilateral Triangle

Length = n
Perimeter 386917923
Area 7.202708223321E+15
Altitude 111693583.49917

Triangular Pyramid

Length = n
Surface area 7.202708223321E+15
Volume 2.5282879278594E+23
Height 60798286.025759