87128538 (number)

87128538 is an even 8-digits composite number following 87128537 and preceding 87128539. In scientific notation, it is written as 8.7128538 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 24090480 positive integers (up to 87128538) that are relatively prime to 87128538.

Interesting facts

Basic properties

Name

Name eighty-seven million one hundred twenty-eight thousand five hundred thirty-eight

Notation

Scientific notation 8.7128538 × 10^7
Engineering notation 8.7128538 × 10^6

Prime Factorization of 87128538

Prime Factorization 2 × 3 × 7 × 31 × 66919

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 87128538
Product of the distinct prime numbers

The prime factorization of 87128538 is 2 × 3 × 7 × 31 × 66919. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 9, 7, 32, 385, 15, 1239, 1467, 79407, 51273, 21687, 119901, 6385695, 8857093, 39287468, 79949729, 317567937, 769844112, 2876061959, 9280657457

Basic calculations (n = 87128538)

Multiplication

n×y
n×2 174257076
n×3 261385614
n×4 348514152
n×5 435642690

Division

n÷y
n÷2 43564269
n÷3 29042846
n÷3 21782134.5
n÷5 17425707.6

Exponentiation

ny
n2 7591382134017444
n3 6.6142602673626E+23
n4 5.7629082704679E+31
n5 5.0211377223398E+39

Nth Root

y√n
2√n 9334.2668699797
3√n 443.32287624282
4√n 96.614009698282
5√n 38.72862562766

Divisors of 87128538

1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 217, 434, 651, 1302, 66919, 133838, 200757, 401514, 468433, 936866, 1405299, 2074489, 2810598, 4148978, 6223467, 12446934, 14521423, 29042846, 43564269, 87128538

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -87128537
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 87128538 can be divided by 32 positive divisors. The sum of these divisors (counting 87128538) is 1, the average is 0.03125.

Base conversion 87128538

Base System Value
2 Binary 101001100010111100111011010
3 Ternary 20001221120212220
4 Quaternary 11030113213122
5 Quinary 134301103123
6 Senary 12351244510
8 Octal 514274732
10 Decimal 87128538
12 Duodecimal 25219736
16 Hexadecimal 53179da
20 Vigesimal 174b16i
36 Base36 1fvgt6

Cryptographic Hash Functions

md5 b2b8e93b1fa39cfcea9c5c04e233b536
sha1 909e27bc78091674be389170b9c9e319044aeaf1
sha256 a3aae16eb7177f5a58cda0958738632b1f9d440bd0214d1df3deb3a2fa600e5f
sha512 72a1498bf1b0a4b2f7bac014d5a1caf385d35743298b757dd86c560f50521d2e6b3083d18284b2af666dc8b699d8f14498831c854db6546d8a60ac8013405570
ripemd-160 9e6f225195462fd4162cf5f3350415c746bf4947

87128538 as geometric shapes

Circle

Radius = n
Diameter 174257076
Circumference 547444749.79764
Area 2.3849030342822E+16

Sphere

Radius = n
Volume 2.7705748619836E+24
Surface area 9.5396121371288E+16
Circumference 547444749.79764

Square

Length = n
Perimeter 348514152
Area 7591382134017444
Diagonal 123218360.10934

Cube

Length = n
Surface area 45548292804104664
Volume 6.6142602673626E+23
Space diagonal 150911054.6052

Equilateral Triangle

Length = n
Perimeter 261385614
Area 3.2871648889472E+15
Altitude 75455527.302598

Triangular Pyramid

Length = n
Surface area 3.2871648889472E+15
Volume 7.7949804793081E+22
Height 41072786.703113