28691640 (number)

28691640 is an even 8-digits composite number following 28691639 and preceding 28691641. In scientific notation, it is written as 2.8691640 × 10^7. The sum of its digits is 36. It has a total of 6 prime factors and 32 positive divisors. There are 7651008 positive integers (up to 28691640) that are relatively prime to 28691640.

Interesting facts

Basic properties

Name

Name twenty-eight million six hundred ninety-one thousand six hundred forty

Notation

Scientific notation 2.8691640 × 10^7
Engineering notation 2.8691640 × 10^6

Prime Factorization of 28691640

Prime Factorization 2 × 2 × 2 × 15 × 3 × 79699

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7172910
Product of the distinct prime numbers

The prime factorization of 28691640 is 2 × 2 × 2 × 15 × 3 × 79699. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 6, 92, 21, 441, 234, 857, 8430, 63036, 2619, 505392, 187956, 1996446, 5547793, 96047627, 5109223, 441592176, 695346965, 1286390792, 5403935802

Basic calculations (n = 28691640)

Multiplication

n×y
n×2 57383280
n×3 86074920
n×4 114766560
n×5 143458200

Division

n÷y
n÷2 14345820
n÷3 9563880
n÷3 7172910
n÷5 5738328

Exponentiation

ny
n2 823210205889600
n3 2.361925087171E+22
n4 6.776750430808E+29
n5 1.9443608373059E+37

Nth Root

y√n
2√n 5356.4577847678
3√n 306.13885790682
4√n 73.187825386247
5√n 31.01352097317

Divisors of 28691640

1, 2, 3, 4, 6, 8, 12, 15, 24, 30, 45, 60, 90, 120, 180, 360, 79699, 159398, 239097, 318796, 478194, 637592, 956388, 1195485, 1912776, 2390970, 3586455, 4781940, 7172910, 9563880, 14345820, 28691640

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28691639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28691640 can be divided by 32 positive divisors. The sum of these divisors (counting 28691640) is 1, the average is 0.03125.

Base conversion 28691640

Base System Value
2 Binary 1101101011100110010111000
3 Ternary 1222222200112100
4 Quaternary 1231130302320
5 Quinary 24321113030
6 Senary 2502543400
8 Octal 155346270
10 Decimal 28691640
12 Duodecimal 9737b60
16 Hexadecimal 1b5ccb8
20 Vigesimal 8j6920
36 Base36 h2ym0

Cryptographic Hash Functions

md5 216d4cb88079db3e312e0d3e63f3e656
sha1 672297ddeb0ffb148525ce7b0082d441b3d864f5
sha256 ee0ccaac3ecd2d8b9a4efe82f8cedf3a499d22e9421c649b4f3b8ec735769530
sha512 d5ec2ae41e5b3072d49bb99465abb59af50e5b577d55527b30e8d35b2cab7103019bdd864c580bd35fa5622acd71a61f075fcc0d7c5928dae80d79c43e2a9392
ripemd-160 ac57ef37093e3dc59f20651edb60ff792a731819

28691640 as geometric shapes

Circle

Radius = n
Diameter 57383280
Circumference 180274890.88689
Area 2.5861911351829E+15

Sphere

Radius = n
Volume 9.8936086695812E+22
Surface area 1.0344764540732E+16
Circumference 180274890.88689

Square

Length = n
Perimeter 114766560
Area 823210205889600
Diagonal 40576106.414726

Cube

Length = n
Surface area 4939261235337600
Volume 2.361925087171E+22
Space diagonal 49695378.232475

Equilateral Triangle

Length = n
Perimeter 86074920
Area 3.5646047547751E+14
Altitude 24847689.116238

Triangular Pyramid

Length = n
Surface area 3.5646047547751E+14
Volume 2.7835554096554E+21
Height 13525368.804909