128889761 (number)

128889761 is an odd 9-digits composite number following 128889760 and preceding 128889762. In scientific notation, it is written as 1.28889761 × 10^8. The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors. There are 92707200 positive integers (up to 128889761) that are relatively prime to 128889761.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28889761 × 10^8
Engineering notation 1.28889761 × 10^6

Prime Factorization of 128889761

Prime Factorization 7 × 11 × 13 × 128761

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128889761
Product of the distinct prime numbers

The prime factorization of 128889761 is 7 × 11 × 13 × 128761. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 22, 52, 22, 45, 1006, 5503, 7748, 88966, 821321, 790903, 4618570, 4958497, 151552, 53970469, 853600213, 116348249, 6761104180, 9758409104

Basic calculations (n = 128889761)

Multiplication

n×y
n×2 257779522
n×3 386669283
n×4 515559044
n×5 644448805

Division

n÷y
n÷2 64444880.5
n÷3 42963253.666667
n÷3 32222440.25
n÷5 25777952.2

Exponentiation

ny
n2 16612570490637121
n3 2.1411902401339E+24
n4 2.7597749830639E+32
n5 3.5570673798088E+40

Nth Root

y√n
2√n 11352.962652982
3√n 505.13346274807
4√n 106.55028227547
5√n 41.88356917467

Divisors of 128889761

1, 7, 11, 13, 77, 91, 143, 1001, 128761, 901327, 1416371, 1673893, 9914597, 11717251, 18412823, 128889761

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 -128889760
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 128889761 can be divided by 16 positive divisors. The sum of these divisors (counting 128889761) is 1, the average is 0.0625.

Base conversion 128889761

Base System Value
2 Binary 111101011101011001110100001
3 Ternary 22222112021111212
4 Quaternary 13223223032201
5 Quinary 230443433021
6 Senary 20442315505
8 Octal 753531641
10 Decimal 128889761
12 Duodecimal 371b8b95
16 Hexadecimal 7aeb3a1
20 Vigesimal 205b481
36 Base36 24qjz5

Cryptographic Hash Functions

md5 bdf696654ef3eee2b751d360e616d0c8
sha1 640933550ca92554c37704f1b0a4618f26aa46fd
sha256 61dced6e6580a9080568f151ba5551412c4efd2745fe595fb5360d61f2e268c1
sha512 b2a723715f5bb0b061e6514109a0703c028187da40fe5bc5e0b4eb7f55a62d6c5e81d579d88e130a14e6a7e7fa94c12d6fd376f388c825c1fd3890ba8d2f009e
ripemd-160 8ad7862d6158289cbd8c4bdf12e7924f3b9e8ce8

128889761 as geometric shapes

Circle

Radius = n
Diameter 257779522
Circumference 809838252.56109
Area 5.2189929410628E+16

Sphere

Radius = n
Volume 8.968996704457E+24
Surface area 2.0875971764251E+17
Circumference 809838252.56109

Square

Length = n
Perimeter 515559044
Area 16612570490637121
Diagonal 182277648.05723

Cube

Length = n
Surface area 99675422943822726
Volume 2.1411902401339E+24
Space diagonal 223243614.62741

Equilateral Triangle

Length = n
Perimeter 386669283
Area 7.1934540335257E+15
Altitude 111621807.3137

Triangular Pyramid

Length = n
Surface area 7.1934540335257E+15
Volume 2.5234168976819E+23
Height 60759216.019076