128406687 (number)

128406687 is an odd 9-digits composite number following 128406686 and preceding 128406688. In scientific notation, it is written as 1.28406687 × 10^8. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 82518912 positive integers (up to 128406687) that are relatively prime to 128406687.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred six thousand six hundred eighty-seven

Notation

Scientific notation 1.28406687 × 10^8
Engineering notation 1.28406687 × 10^6

Prime Factorization of 128406687

Prime Factorization 3 × 37 × 109 × 10613

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128406687
Product of the distinct prime numbers

The prime factorization of 128406687 is 3 × 37 × 109 × 10613. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 8, 84, 75, 186, 680, 1888, 8834, 13427, 72493, 183194, 387363, 5514774, 5292969, 94983069, 46608525, 49127106, 949663434, 4374209533, 1733224802

Basic calculations (n = 128406687)

Multiplication

n×y
n×2 256813374
n×3 385220061
n×4 513626748
n×5 642033435

Division

n÷y
n÷2 64203343.5
n÷3 42802229
n÷3 32101671.75
n÷5 25681337.4

Exponentiation

ny
n2 16488277266315969
n3 2.1172050581051E+24
n4 2.7186328721091E+32
n5 3.4909064027683E+40

Nth Root

y√n
2√n 11331.66744129
3√n 504.50159891814
4√n 106.45030503146
5√n 41.852126390798

Divisors of 128406687

1, 3, 37, 109, 111, 327, 4033, 10613, 12099, 31839, 392681, 1156817, 1178043, 3470451, 42802229, 128406687

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128406686
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128406687 can be divided by 16 positive divisors. The sum of these divisors (counting 128406687) is 1, the average is 0.0625.

Base conversion 128406687

Base System Value
2 Binary 111101001110101010010011111
3 Ternary 22221121201212020
4 Quaternary 13221311102133
5 Quinary 230333003222
6 Senary 20424111223
8 Octal 751652237
10 Decimal 128406687
12 Duodecimal 37005513
16 Hexadecimal 7a7549f
20 Vigesimal 202age7
36 Base36 24g78f

Cryptographic Hash Functions

md5 0f5f70b6ae140f9f4bc2d61690f471d6
sha1 6c341b2be98435bca4e6ebec3501b846cac92a76
sha256 da470f645541a82efae15b5ca2efe05e472427ba7dbfe849467231ff6f90e8fe
sha512 d24c298c8fd47ed78876555718292422068b6d4700264995d8017d01d9d50e46bc2a95ef2df4976fb6376338e0917d984a021104ee6c17bea3059b43646a916d
ripemd-160 9e30947ae18b3902a1dd315df46ba3ee5f7819f5

128406687 as geometric shapes

Circle

Radius = n
Diameter 256813374
Circumference 806803009.10201
Area 5.179945073021E+16

Sphere

Radius = n
Volume 8.8685278089146E+24
Surface area 2.0719780292084E+17
Circumference 806803009.10201

Square

Length = n
Perimeter 513626748
Area 16488277266315969
Diagonal 181594478.2548

Cube

Length = n
Surface area 98929663597895814
Volume 2.1172050581051E+24
Space diagonal 222406905.91559

Equilateral Triangle

Length = n
Perimeter 385220061
Area 7.1396334886355E+15
Altitude 111203452.9578

Triangular Pyramid

Length = n
Surface area 7.1396334886355E+15
Volume 2.4951500895809E+23
Height 60531492.751599