128972457 (number)

128972457 is an odd 9-digits composite number following 128972456 and preceding 128972458. In scientific notation, it is written as 1.28972457 × 10^8. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 85908888 positive integers (up to 128972457) that are relatively prime to 128972457.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million nine hundred seventy-two thousand four hundred fifty-seven

Notation

Scientific notation 1.28972457 × 10^8
Engineering notation 1.28972457 × 10^6

Prime Factorization of 128972457

Prime Factorization 9 × 1327 × 10799

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128972457
Product of the distinct prime numbers

The prime factorization of 128972457 is 9 × 1327 × 10799. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128972457)

Multiplication

n×y
n×2 257944914
n×3 386917371
n×4 515889828
n×5 644862285

Division

n÷y
n÷2 64486228.5
n÷3 42990819
n÷3 32243114.25
n÷5 25794491.4

Exponentiation

ny
n2 16633894664616849
n3 2.1453142643748E+24
n4 2.7668645171357E+32
n5 3.5684931496111E+40

Nth Root

y√n
2√n 11356.604113907
3√n 505.24147129199
4√n 106.5673688983
5√n 41.888942316879

Divisors of 128972457

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 -128972456
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 128972457 can be divided by 8 positive divisors. The sum of these divisors (counting 128972457) is 1, the average is 0.125.

Base conversion 128972457

Base System Value
2 Binary 111101011111111011010101001
3 Ternary 22222200110221200
4 Quaternary 13223333122221
5 Quinary 231004104312
6 Senary 20444154413
8 Octal 753773251
10 Decimal 128972457
12 Duodecimal 37238a09
16 Hexadecimal 7aff6a9
20 Vigesimal 2061b2h
36 Base36 24sbs9

Cryptographic Hash Functions

md5 890c2e1303e7885fbb0795c10a39eba1
sha1 a04125f8418ea018898bd1855c5b0b73e121cd77
sha256 c189eb7044e87d159e4174ede48531b3b4192803240ed581011465c0b312e30d
sha512 7687ef8277d81c0c8df39184138789baf59e6951b08b3864a030968866ac86aa903eeb4148ada03026ef4bded33bff82d3b60816a1de5ab63bedc6ba8a9f3daa
ripemd-160 ebfdc4d1d1ed55a161980a313fe230c5960f7fef

128972457 as geometric shapes

Circle

Radius = n
Diameter 257944914
Circumference 810357846.85325
Area 5.2256921278947E+16

Sphere

Radius = n
Volume 8.9862713768018E+24
Surface area 2.0902768511579E+17
Circumference 810357846.85325

Square

Length = n
Perimeter 515889828
Area 16633894664616849
Diagonal 182394597.86198

Cube

Length = n
Surface area 99803367987701094
Volume 2.1453142643748E+24
Space diagonal 223386848.30099

Equilateral Triangle

Length = n
Perimeter 386917371
Area 7.2026876717163E+15
Altitude 111693424.1505

Triangular Pyramid

Length = n
Surface area 7.2026876717163E+15
Volume 2.5282771068594E+23
Height 60798199.287327