128691369 (number)

128691369 is an odd 9-digits composite number following 128691368 and preceding 128691370. In scientific notation, it is written as 1.28691369 × 10^8. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 85277520 positive integers (up to 128691369) that are relatively prime to 128691369.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million six hundred ninety-one thousand three hundred sixty-nine

Notation

Scientific notation 1.28691369 × 10^8
Engineering notation 1.28691369 × 10^6

Prime Factorization of 128691369

Prime Factorization 9 × 3 × 167 × 28541

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128691369
Product of the distinct prime numbers

The prime factorization of 128691369 is 9 × 3 × 167 × 28541. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 11, 86, 996, 348, 3370, 8261, 29532, 45681, 148883, 68791, 6668192, 4768609, 84819605, 87672682, 644551296, 873774763, 9348139973, 8669781990

Basic calculations (n = 128691369)

Multiplication

n×y
n×2 257382738
n×3 386074107
n×4 514765476
n×5 643456845

Division

n÷y
n÷2 64345684.5
n÷3 42897123
n÷3 32172842.25
n÷5 25738273.8

Exponentiation

ny
n2 16561468455094161
n3 2.1313180481364E+24
n4 2.7428223738908E+32
n5 3.5297756621984E+40

Nth Root

y√n
2√n 11344.221833162
3√n 504.87415614081
4√n 106.50925703037
5√n 41.870667473624

Divisors of 128691369

1, 3, 9, 27, 167, 501, 1503, 4509, 28541, 85623, 256869, 770607, 4766347, 14299041, 42897123, 128691369

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 -128691368
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 128691369 can be divided by 16 positive divisors. The sum of these divisors (counting 128691369) is 1, the average is 0.0625.

Base conversion 128691369

Base System Value
2 Binary 111101010111010110010101001
3 Ternary 22222011012101000
4 Quaternary 13222322302221
5 Quinary 230421110434
6 Senary 20434145213
8 Octal 752726251
10 Decimal 128691369
12 Duodecimal 37122209
16 Hexadecimal 7abaca9
20 Vigesimal 2046889
36 Base36 24maw9

Cryptographic Hash Functions

md5 60f33d6677cb1dbc093fb8f6426a094c
sha1 2c212439c5955ae85e8d5243f79af2e5f4f021ed
sha256 cd14a826b685c7884fd9cba119efe603664a76ae3675fbfd0d9d9028bbc17306
sha512 bd5675998e798bc8c5c81f51dd5692df8c859086c5296eec455c85312a5f9cf21eda1983353c2cdf56f0c24b8ed04e85bda8495ff0f2b06400855aea64e8c383
ripemd-160 055c8ca997d8938aacb8b2424847f55949d1e49d

128691369 as geometric shapes

Circle

Radius = n
Diameter 257382738
Circumference 808591718.86163
Area 5.2029387631183E+16

Sphere

Radius = n
Volume 8.9276441633181E+24
Surface area 2.0811755052473E+17
Circumference 808591718.86163

Square

Length = n
Perimeter 514765476
Area 16561468455094161
Diagonal 181997079.40016

Cube

Length = n
Surface area 99368810730564966
Volume 2.1313180481364E+24
Space diagonal 222899989.60359

Equilateral Triangle

Length = n
Perimeter 386074107
Area 7.1713262030431E+15
Altitude 111449994.8018

Triangular Pyramid

Length = n
Surface area 7.1713262030431E+15
Volume 2.5117824078375E+23
Height 60665693.133387