128972649 (number)

128972649 is an odd 9-digits composite number following 128972648 and preceding 128972650. In scientific notation, it is written as 1.28972649 × 10^8. The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors. There are 79367760 positive integers (up to 128972649) that are relatively prime to 128972649.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28972649 × 10^8
Engineering notation 1.28972649 × 10^6

Prime Factorization of 128972649

Prime Factorization 3 × 13 × 3306991

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128972649
Product of the distinct prime numbers

The prime factorization of 128972649 is 3 × 13 × 3306991. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128972649)

Multiplication

n×y
n×2 257945298
n×3 386917947
n×4 515890596
n×5 644863245

Division

n÷y
n÷2 64486324.5
n÷3 42990883
n÷3 32243162.25
n÷5 25794529.8

Exponentiation

ny
n2 16633944190077201
n3 2.1453238455124E+24
n4 2.766880993186E+32
n5 3.5685197115895E+40

Nth Root

y√n
2√n 11356.612567135
3√n 505.24172200783
4√n 106.56740855972
5√n 41.888954788801

Divisors of 128972649

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 -128972648
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 128972649 can be divided by 8 positive divisors. The sum of these divisors (counting 128972649) is 1, the average is 0.125.

Base conversion 128972649

Base System Value
2 Binary 111101011111111011101101001
3 Ternary 22222200111012210
4 Quaternary 13223333131221
5 Quinary 231004111044
6 Senary 20444155333
8 Octal 753773551
10 Decimal 128972649
12 Duodecimal 37238b49
16 Hexadecimal 7aff769
20 Vigesimal 2061bc9
36 Base36 24sbxl

Cryptographic Hash Functions

md5 7c679a9ee6099d552abd38eee5227bc0
sha1 ecad297534b1852ac5863f6aad1e128ac606bedb
sha256 49338d6bcb66504a0355af44f9e382d1529eb9ad13e881c4285c9cda1a7e73a9
sha512 958ac0da8ba3a72f404433398150ce75a893a78bce766c0d33b080b0b4d38d3fc59dbf1e68ff6ff5bb32e6989b544229a0b49f7a19bd06b2955cbb8a02603550
ripemd-160 96efe40c826e8dc230b793655cfd319955e5d21d

128972649 as geometric shapes

Circle

Radius = n
Diameter 257945298
Circumference 810359053.22483
Area 5.2257076867769E+16

Sphere

Radius = n
Volume 8.9863115101771E+24
Surface area 2.0902830747108E+17
Circumference 810359053.22483

Square

Length = n
Perimeter 515890596
Area 16633944190077201
Diagonal 182394869.39098

Cube

Length = n
Surface area 99803665140463206
Volume 2.1453238455124E+24
Space diagonal 223387180.85475

Equilateral Triangle

Length = n
Perimeter 386917947
Area 7.2027091168697E+15
Altitude 111693590.42737

Triangular Pyramid

Length = n
Surface area 7.2027091168697E+15
Volume 2.5282883983384E+23
Height 60798289.796995