87128980 (number)

87128980 is an even 8-digits composite number following 87128979 and preceding 87128981. In scientific notation, it is written as 8.7128980 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 34851584 positive integers (up to 87128980) that are relatively prime to 87128980.

Interesting facts

Basic properties

Name

Name eighty-seven million one hundred twenty-eight thousand nine hundred eighty

Notation

Scientific notation 8.7128980 × 10^7
Engineering notation 8.7128980 × 10^6

Prime Factorization of 87128980

Prime Factorization 2 × 2 × 5 × 4356449

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 43564490
Product of the distinct prime numbers

The prime factorization of 87128980 is 2 × 2 × 5 × 4356449. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 9, 45, 8, 531, 77, 2748, 3919, 67813, 24487, 457469, 262053, 3802849, 2945166, 51726608, 36688069, 204873351, 840934336, 9863247268, 1289885058

Basic calculations (n = 87128980)

Multiplication

n×y
n×2 174257960
n×3 261386940
n×4 348515920
n×5 435644900

Division

n÷y
n÷2 43564490
n÷3 29042993.333333
n÷3 21782245
n÷5 17425796

Exponentiation

ny
n2 7591459155840400
n3 6.6143609296004E+23
n4 5.7630252114793E+31
n5 5.0212650839048E+39

Nth Root

y√n
2√n 9334.2905461529
3√n 443.32362589532
4√n 96.614132227914
5√n 38.72866492137

Divisors of 87128980

1, 2, 4, 5, 10, 20, 4356449, 8712898, 17425796, 21782245, 43564490, 87128980

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -87128979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 87128980 can be divided by 12 positive divisors. The sum of these divisors (counting 87128980) is 1, the average is 0.083333333333333.

Base conversion 87128980

Base System Value
2 Binary 101001100010111101110010100
3 Ternary 20001221121111021
4 Quaternary 11030113232110
5 Quinary 134301111410
6 Senary 12351250524
8 Octal 514275624
10 Decimal 87128980
12 Duodecimal 25219a44
16 Hexadecimal 5317b94
20 Vigesimal 174b290
36 Base36 1fvh5g

Cryptographic Hash Functions

md5 7e2668b046c11fc86687100431862082
sha1 eaaa300662c09d08aba456b78f67c54847d460d6
sha256 d5c3cfb521e01bf9d1626d4e471e82f2e73164d8b5086ec714b4c00f5c55c825
sha512 20ac2b899275f6adabc6ba366c0d76a66c9bdcd08bcc9a9d99d30c9d6c0a92f90f149ba768899a21a8c671fa0548edad84c9878ce9d939f1d60697dca2d5fcd5
ripemd-160 815a7a32a50af1322dbcc220d37703d3352bf559

87128980 as geometric shapes

Circle

Radius = n
Diameter 174257960
Circumference 547447526.96554
Area 2.3849272314015E+16

Sphere

Radius = n
Volume 2.7706170272832E+24
Surface area 9.5397089256061E+16
Circumference 547447526.96554

Square

Length = n
Perimeter 348515920
Area 7591459155840400
Diagonal 123218985.19173

Cube

Length = n
Surface area 45548754935042400
Volume 6.6143609296004E+23
Space diagonal 150911820.17165

Equilateral Triangle

Length = n
Perimeter 261386940
Area 3.2871982403749E+15
Altitude 75455910.085826

Triangular Pyramid

Length = n
Surface area 3.2871982403749E+15
Volume 7.7950991108929E+22
Height 41072995.063911