128653721 (number)

128653721 is an odd 9-digits composite number following 128653720 and preceding 128653722. In scientific notation, it is written as 1.28653721 × 10^8. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 107709840 positive integers (up to 128653721) that are relatively prime to 128653721.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred fifty-three thousand seven hundred twenty-one

Notation

Scientific notation 1.28653721 × 10^8
Engineering notation 1.28653721 × 10^6

Prime Factorization of 128653721

Prime Factorization 301 × 427421

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 128653721
Product of the distinct prime numbers

The prime factorization of 128653721 is 301 × 427421. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 68, 93, 311, 543, 6296, 5738, 98350, 30435, 728361, 282627, 5801472, 4634368, 2120286, 16263816, 740874537, 551280903, 1459798440, 6748034418

Basic calculations (n = 128653721)

Multiplication

n×y
n×2 257307442
n×3 385961163
n×4 514614884
n×5 643268605

Division

n÷y
n÷2 64326860.5
n÷3 42884573.666667
n÷3 32163430.25
n÷5 25730744.2

Exponentiation

ny
n2 16551779927145841
n3 2.1294480768004E+24
n4 2.7396141875667E+32
n5 3.5246155933485E+40

Nth Root

y√n
2√n 11342.562364827
3√n 504.82491855739
4√n 106.50146649144
5√n 41.868217377095

Divisors of 128653721

1, 301, 427421, 128653721

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 -128653720
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 128653721 can be divided by 4 positive divisors. The sum of these divisors (counting 128653721) is 1, the average is 0.25.

Base conversion 128653721

Base System Value
2 Binary 111101010110001100110011001
3 Ternary 22222002021201122
4 Quaternary 13222301212121
5 Quinary 230413404341
6 Senary 20433255025
8 Octal 752614631
10 Decimal 128653721
12 Duodecimal 37104475
16 Hexadecimal 7ab1999
20 Vigesimal 2041e61
36 Base36 24lhuh

Cryptographic Hash Functions

md5 351272c50e03d01d6069f3bda3878825
sha1 9b06d2918813a979a032fe45fa82b68792cabdb9
sha256 25efdd2c78691c1b6320ce3f922a2acc7fdb3626cf4528b68f30412e3121caa5
sha512 688060257a7a488c40375f37b4070ef1629e5dbeefacd8821ca40ef381aba3bb9636f17aaa37eff54b9b46b3f1accac211ca3c58b18e649ac904aadec22c7882
ripemd-160 da05ede9e20a82bb8647c028b8b6c808a4cde366

128653721 as geometric shapes

Circle

Radius = n
Diameter 257307442
Circumference 808355169.50118
Area 5.1998950222956E+16

Sphere

Radius = n
Volume 8.9198112457028E+24
Surface area 2.0799580089183E+17
Circumference 808355169.50118

Square

Length = n
Perimeter 514614884
Area 16551779927145841
Diagonal 181943837.08796

Cube

Length = n
Surface area 99310679562875046
Volume 2.1294480768004E+24
Space diagonal 222834781.35479

Equilateral Triangle

Length = n
Perimeter 385961163
Area 7.1671309473788E+15
Altitude 111417390.6774

Triangular Pyramid

Length = n
Surface area 7.1671309473788E+15
Volume 2.5095786254837E+23
Height 60647945.695988