128021245 (number)

128021245 is an odd 9-digits composite number following 128021244 and preceding 128021246. In scientific notation, it is written as 1.28021245 × 10^8. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 92816640 positive integers (up to 128021245) that are relatively prime to 128021245.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million twenty-one thousand two hundred forty-five

Notation

Scientific notation 1.28021245 × 10^8
Engineering notation 1.28021245 × 10^6

Prime Factorization of 128021245

Prime Factorization 55 × 337 × 6907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128021245
Product of the distinct prime numbers

The prime factorization of 128021245 is 55 × 337 × 6907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 74, 87, 548, 981, 6899, 7448, 29904, 79460, 533352, 553611, 2151363, 1732272, 49377880, 88223922, 924565384, 908605888, 6256892916, 8500422668

Basic calculations (n = 128021245)

Multiplication

n×y
n×2 256042490
n×3 384063735
n×4 512084980
n×5 640106225

Division

n÷y
n÷2 64010622.5
n÷3 42673748.333333
n÷3 32005311.25
n÷5 25604249

Exponentiation

ny
n2 16389439171350025
n3 2.098196407568E+24
n4 2.6861371635138E+32
n5 3.4388262391381E+40

Nth Root

y√n
2√n 11314.647365252
3√n 503.99630073081
4√n 106.37033122658
5√n 41.826970424751

Divisors of 128021245

1, 55, 337, 6907, 18535, 379885, 2327659, 128021245

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 -128021244
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 128021245 can be divided by 8 positive divisors. The sum of these divisors (counting 128021245) is 1, the average is 0.125.

Base conversion 128021245

Base System Value
2 Binary 111101000010111001011111101
3 Ternary 22220220011010121
4 Quaternary 13220113023331
5 Quinary 230233134440
6 Senary 20411534541
8 Octal 750271375
10 Decimal 128021245
12 Duodecimal 36a5a451
16 Hexadecimal 7a172fd
20 Vigesimal 2002d25
36 Base36 247xtp

Cryptographic Hash Functions

md5 a9acd7e6cc772b09582a1ca741daa223
sha1 c14e1498e7c6e1aae16c3039d9fdeb4a4dc770c3
sha256 61cd6fff15da5c82d9b84c31cd7b91d6633160862f6323771c5698d8eb0c9a95
sha512 31409567a50113ac9934c5b07a1c08140918e5ca979d79aa77867d8290f8b5f4d92dfc946a1069a6d7f6b08b872b2cc6f0d4fe5b3cb99a49bdb56ea882406673
ripemd-160 c98ad1eb3331d9719d0bd6f0292dc5ae0585fdf3

128021245 as geometric shapes

Circle

Radius = n
Diameter 256042490
Circumference 804381205.59084
Area 5.148894169717E+16

Sphere

Radius = n
Volume 8.7889045597388E+24
Surface area 2.0595576678868E+17
Circumference 804381205.59084

Square

Length = n
Perimeter 512084980
Area 16389439171350025
Diagonal 181049380.95089

Cube

Length = n
Surface area 98336635028100150
Volume 2.098196407568E+24
Space diagonal 221739300.78822

Equilateral Triangle

Length = n
Perimeter 384063735
Area 7.0968353380844E+15
Altitude 110869650.39411

Triangular Pyramid

Length = n
Surface area 7.0968353380844E+15
Volume 2.4727481800876E+23
Height 60349793.650296