78820021 (number)

78820021 is an odd 8-digits composite number following 78820020 and preceding 78820022. In scientific notation, it is written as 7.8820021 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 67560012 positive integers (up to 78820021) that are relatively prime to 78820021.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.8820021 × 10^7
Engineering notation 7.8820021 × 10^6

Prime Factorization of 78820021

Prime Factorization 7 × 11260003

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 78820021
Product of the distinct prime numbers

The prime factorization of 78820021 is 7 × 11260003. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 78820021)

Multiplication

n×y
n×2 157640042
n×3 236460063
n×4 315280084
n×5 394100105

Division

n÷y
n÷2 39410010.5
n÷3 26273340.333333
n÷3 19705005.25
n÷5 15764004.2

Exponentiation

ny
n2 6212595710440441
n3 4.8967692436143E+23
n4 3.8596345461383E+31
n5 3.0421647597895E+39

Nth Root

y√n
2√n 8878.0640344616
3√n 428.75794634327
4√n 94.223479210129
5√n 37.960096626941

Divisors of 78820021

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78820020
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78820021 can be divided by 4 positive divisors. The sum of these divisors (counting 78820021) is 1, the average is 0.25.

Base conversion 78820021

Base System Value
2 Binary 100101100101011001010110101
3 Ternary 12111022110202001
4 Quaternary 10230223022311
5 Quinary 130134220041
6 Senary 11453215301
8 Octal 454531265
10 Decimal 78820021
12 Duodecimal 22491531
16 Hexadecimal 4b2b2b5
20 Vigesimal 14cca11
36 Base36 1axdx1

Cryptographic Hash Functions

md5 00780f0a4c44f8c087f405b319643f7a
sha1 e9b1251250e519fe255488e5358f544befb42aad
sha256 a85ad5fd5d5c3b527704f9a01d28f75f3663b0fd3cff2e7a0da341cc254c51dc
sha512 5008dd205cdf84d3cf292e1e325cfd96e00a2439562f5bc14db07cfa895c9c2bcd6c560efd9a4819efae7a54353eef5cb93f51ad938f631796e1fe5282a723a0
ripemd-160 d35d7bbd3992447f7755a74d142af254d3d428f7

78820021 as geometric shapes

Circle

Radius = n
Diameter 157640042
Circumference 495240797.85879
Area 1.9517445043643E+16

Sphere

Radius = n
Volume 2.0511539042751E+24
Surface area 7.8069780174573E+16
Circumference 495240797.85879

Square

Length = n
Perimeter 315280084
Area 6212595710440441
Diagonal 111468342.68473

Cube

Length = n
Surface area 37275574262642646
Volume 4.8967692436143E+23
Space diagonal 136520281.02565

Equilateral Triangle

Length = n
Perimeter 236460063
Area 2.6901328543418E+15
Altitude 68260140.512823

Triangular Pyramid

Length = n
Surface area 2.6901328543418E+15
Volume 5.7708978967756E+22
Height 37156114.228244