87128439 (number)

87128439 is an odd 8-digits composite number following 87128438 and preceding 87128440. In scientific notation, it is written as 8.7128439 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 55560120 positive integers (up to 87128439) that are relatively prime to 87128439.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.7128439 × 10^7
Engineering notation 8.7128439 × 10^6

Prime Factorization of 87128439

Prime Factorization 3 × 23 × 1262731

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 87128439
Product of the distinct prime numbers

The prime factorization of 87128439 is 3 × 23 × 1262731. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 90, 22, 20, 282, 7325, 6065, 14925, 79645, 839849, 529279, 1457542, 5368805, 45868271, 9105684, 741462994, 177020215, 8807216431, 5582073121

Basic calculations (n = 87128439)

Multiplication

n×y
n×2 174256878
n×3 261385317
n×4 348513756
n×5 435642195

Division

n÷y
n÷2 43564219.5
n÷3 29042813
n÷3 21782109.75
n÷5 17425687.8

Exponentiation

ny
n2 7591364882576721
n3 6.6142377209833E+23
n4 5.7628820780419E+31
n5 5.0211091960087E+39

Nth Root

y√n
2√n 9334.2615669372
3√n 443.32270833388
4√n 96.613982253798
5√n 38.728616826558

Divisors of 87128439

1, 3, 23, 69, 1262731, 3788193, 29042813, 87128439

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 -87128438
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 87128439 can be divided by 8 positive divisors. The sum of these divisors (counting 87128439) is 1, the average is 0.125.

Base conversion 87128439

Base System Value
2 Binary 101001100010111100101110111
3 Ternary 20001221120202020
4 Quaternary 11030113211313
5 Quinary 134301102224
6 Senary 12351244223
8 Octal 514274567
10 Decimal 87128439
12 Duodecimal 25219673
16 Hexadecimal 5317977
20 Vigesimal 174b11j
36 Base36 1fvgqf

Cryptographic Hash Functions

md5 ee0c1af74c6002208bc582bb1810ace3
sha1 cd0e725679487d69df9e6a7d6d736005a72ac47f
sha256 3fb039d293e3758c6e1a5d50bd64c59d30f050ca8c05b39a2dde838fc781dc3e
sha512 72e3abca3a9b315e9804599be17709f3b0a70ff441c673d908ec2489fd47320aef8a5e5cffc646d4c566052e54c7ef63282ac083eed44e7a5805a2b0a719a306
ripemd-160 09b383d1045c1b832d6e3d924d868e67f620fbba

87128439 as geometric shapes

Circle

Radius = n
Diameter 174256878
Circumference 547444127.76229
Area 2.3848976145823E+16

Sphere

Radius = n
Volume 2.7705654177783E+24
Surface area 9.539590458329E+16
Circumference 547444127.76229

Square

Length = n
Perimeter 348513756
Area 7591364882576721
Diagonal 123218220.1022

Cube

Length = n
Surface area 45548189295460326
Volume 6.6142377209833E+23
Space diagonal 150910883.13217

Equilateral Triangle

Length = n
Perimeter 261385317
Area 3.2871574188543E+15
Altitude 75455441.566083

Triangular Pyramid

Length = n
Surface area 3.2871574188543E+15
Volume 7.7949539081452E+22
Height 41072740.034066