28778821 (number)

28778821 is an odd 8-digits prime number following 28778820 and preceding 28778822. In scientific notation, it is written as 2.8778821 × 10^7. The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors. There are 28778820 positive integers (up to 28778821) that are relatively prime to 28778821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8778821 × 10^7
Engineering notation 2.8778821 × 10^6

Prime Factorization of 28778821

Prime Factorization 28778821

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 28778821
Product of the distinct prime numbers

The prime factorization of 28778821 is 28778821. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28778821)

Multiplication

n×y
n×2 57557642
n×3 86336463
n×4 115115284
n×5 143894105

Division

n÷y
n÷2 14389410.5
n÷3 9592940.3333333
n÷3 7194705.25
n÷5 5755764.2

Exponentiation

ny
n2 828220538150041
n3 2.3835210615944E+22
n4 6.8594925981354E+29
n5 1.9740810963256E+37

Nth Root

y√n
2√n 5364.5895462747
3√n 306.44861718228
4√n 73.243358376543
5√n 31.032345338104

Divisors of 28778821

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 28778822
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 14389411
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5364.5896394785
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999305045
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28778821 can be divided by 2 positive divisors. The sum of these divisors (counting 28778821) is 28778822, the average is 14389411.

Base conversion 28778821

Base System Value
2 Binary 1101101110010000101000101
3 Ternary 2000011010010021
4 Quaternary 1231302011011
5 Quinary 24331410241
6 Senary 2504455141
8 Octal 155620505
10 Decimal 28778821
12 Duodecimal 977a4b1
16 Hexadecimal 1b72145
20 Vigesimal 8jh711
36 Base36 h4tvp

Cryptographic Hash Functions

md5 144bf3f9c4e049435ea11a7719fc856f
sha1 456afefeaf0ab5e7651d072c3af9a8514665559e
sha256 c207f961e811c5ef6ffae4536d878f0e525905f7b8bfdbf016828ae54369c4ba
sha512 4c0168c7c462a99855c5c5bc0acdc8cd4b2beb298204511191a27bdc8a000997d5ac3a312b06b944790d0a4903626b4995161d8736d5c6fa979172342321e341
ripemd-160 3f4eb95e457b67bd5671ea9d39c99b3b606dbc79

28778821 as geometric shapes

Circle

Radius = n
Diameter 57557642
Circumference 180822665.26515
Area 2.6019315582044E+15

Sphere

Radius = n
Volume 9.9840696757086E+22
Surface area 1.0407726232817E+16
Circumference 180822665.26515

Square

Length = n
Perimeter 115115284
Area 828220538150041
Diagonal 40699398.967308

Cube

Length = n
Surface area 4969323228900246
Volume 2.3835210615944E+22
Space diagonal 49846380.15393

Equilateral Triangle

Length = n
Perimeter 86336463
Area 3.5863001298698E+14
Altitude 24923190.076965

Triangular Pyramid

Length = n
Surface area 3.5863001298698E+14
Volume 2.8090065095906E+21
Height 13566466.322436