128437925 (number)

128437925 is an odd 9-digits composite number following 128437924 and preceding 128437926. In scientific notation, it is written as 1.28437925 × 10^8. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 80064000 positive integers (up to 128437925) that are relatively prime to 128437925.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred thirty-seven thousand nine hundred twenty-five

Notation

Scientific notation 1.28437925 × 10^8
Engineering notation 1.28437925 × 10^6

Prime Factorization of 128437925

Prime Factorization 55 × 35 × 66721

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128437925
Product of the distinct prime numbers

The prime factorization of 128437925 is 55 × 35 × 66721. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 7, 31, 40, 740, 630, 7771, 4715, 34301, 3722, 375345, 176355, 3256479, 6698376, 44774608, 18407193, 490492080, 180401259, 1575736101, 5616444028

Basic calculations (n = 128437925)

Multiplication

n×y
n×2 256875850
n×3 385313775
n×4 513751700
n×5 642189625

Division

n÷y
n÷2 64218962.5
n÷3 42812641.666667
n÷3 32109481.25
n÷5 25687585

Exponentiation

ny
n2 16496300578305625
n3 2.1187506164539E+24
n4 2.7212793276981E+32
n5 3.4951547019493E+40

Nth Root

y√n
2√n 11333.045707135
3√n 504.54250629744
4√n 106.45677858706
5√n 41.854162498968

Divisors of 128437925

1, 35, 55, 1925, 66721, 2335235, 3669655, 128437925

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 -128437924
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 128437925 can be divided by 8 positive divisors. The sum of these divisors (counting 128437925) is 1, the average is 0.125.

Base conversion 128437925

Base System Value
2 Binary 111101001111100111010100101
3 Ternary 22221200022201012
4 Quaternary 13221330322211
5 Quinary 230340003200
6 Senary 20424512005
8 Octal 751747245
10 Decimal 128437925
12 Duodecimal 3701b605
16 Hexadecimal 7a7cea5
20 Vigesimal 202eeg5
36 Base36 24gvc5

Cryptographic Hash Functions

md5 07d1080f17c44ab4c66632eeb7c39953
sha1 72af0b357d70b21ad7911092245318026c0cd85d
sha256 c27a4b8a74cecd34946f4bf0f974f1c35b21406bf74fa482514db59227d697a2
sha512 89fda55379bbd1065f2e48dfd6d64d5db405fe769578d0b1d8d6af27f10153c6f13d49c93beb1b8b5ce8590e98160e6e06d70920e6bb77c7bdc920edca8e1668
ripemd-160 7f939b8dac63ac7b83eaabca57e71b3b2f06ea19

128437925 as geometric shapes

Circle

Radius = n
Diameter 256875850
Circumference 806999283.24463
Area 5.1824656708214E+16

Sphere

Radius = n
Volume 8.8750018285871E+24
Surface area 2.0729862683286E+17
Circumference 806999283.24463

Square

Length = n
Perimeter 513751700
Area 16496300578305625
Diagonal 181638655.45806

Cube

Length = n
Surface area 98977803469833750
Volume 2.1187506164539E+24
Space diagonal 222461011.71872

Equilateral Triangle

Length = n
Perimeter 385313775
Area 7.1431076846383E+15
Altitude 111230505.85936

Triangular Pyramid

Length = n
Surface area 7.1431076846383E+15
Volume 2.4969715475629E+23
Height 60546218.486019