128571891 (number)

128571891 is an odd 9-digits composite number following 128571890 and preceding 128571892. In scientific notation, it is written as 1.28571891 × 10^8. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 73276128 positive integers (up to 128571891) that are relatively prime to 128571891.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred seventy-one thousand eight hundred ninety-one

Notation

Scientific notation 1.28571891 × 10^8
Engineering notation 1.28571891 × 10^6

Prime Factorization of 128571891

Prime Factorization 3 × 7 × 389 × 15739

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128571891
Product of the distinct prime numbers

The prime factorization of 128571891 is 3 × 7 × 389 × 15739. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 1, 50, 14, 10, 467, 2340, 5576, 70243, 6308, 794196, 776268, 8600257, 7595640, 98481085, 87878656, 985833169, 626797709, 4339147292, 3214602960

Basic calculations (n = 128571891)

Multiplication

n×y
n×2 257143782
n×3 385715673
n×4 514287564
n×5 642859455

Division

n÷y
n÷2 64285945.5
n÷3 42857297
n÷3 32142972.75
n÷5 25714378.2

Exponentiation

ny
n2 16530731155315881
n3 2.1253873642516E+24
n4 2.7326507252933E+32
n5 3.5134207119348E+40

Nth Root

y√n
2√n 11338.954581442
3√n 504.71786482118
4√n 106.48452742742
5√n 41.862889978565

Divisors of 128571891

1, 3, 7, 21, 389, 1167, 2723, 8169, 15739, 47217, 110173, 330519, 6122471, 18367413, 42857297, 128571891

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 -128571890
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 128571891 can be divided by 16 positive divisors. The sum of these divisors (counting 128571891) is 1, the average is 0.0625.

Base conversion 128571891

Base System Value
2 Binary 111101010011101100111110011
3 Ternary 22221221010110220
4 Quaternary 13222131213303
5 Quinary 230403300031
6 Senary 20431424123
8 Octal 752354763
10 Decimal 128571891
12 Duodecimal 37085043
16 Hexadecimal 7a9d9f3
20 Vigesimal 203b9eb
36 Base36 24jqpf

Cryptographic Hash Functions

md5 68ed5ad905cfedb23b7a36d0b2df55e4
sha1 27d1052a98cc88625d4a4f2fce0411b4a937ab84
sha256 eee664d90e0fac8748fbb7b8331acc786c727f4d29517c14b1eff8693aae22d2
sha512 52abc7853e2a6ca317b2b5bdccba6b0400914568ee98423abd0403feb49bf0243c7fd6ddc866286aff1255e0f1550739191f784fd9e2ca16c5980135019e0a81
ripemd-160 e7c7a53e3fd787507daf52779679b5020f850c3d

128571891 as geometric shapes

Circle

Radius = n
Diameter 257143782
Circumference 807841016.4475
Area 5.1932823556008E+16

Sphere

Radius = n
Volume 8.9028017727538E+24
Surface area 2.0773129422403E+17
Circumference 807841016.4475

Square

Length = n
Perimeter 514287564
Area 16530731155315881
Diagonal 181828111.99216

Cube

Length = n
Surface area 99184386931895286
Volume 2.1253873642516E+24
Space diagonal 222693047.63721

Equilateral Triangle

Length = n
Perimeter 385715673
Area 7.1580165618172E+15
Altitude 111346523.8186

Triangular Pyramid

Length = n
Surface area 7.1580165618172E+15
Volume 2.5047930298508E+23
Height 60609370.664052