28771821 (number)

28771821 is an odd 8-digits composite number following 28771820 and preceding 28771822. In scientific notation, it is written as 2.8771821 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 17705520 positive integers (up to 28771821) that are relatively prime to 28771821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8771821 × 10^7
Engineering notation 2.8771821 × 10^6

Prime Factorization of 28771821

Prime Factorization 9 × 39 × 81971

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28771821
Product of the distinct prime numbers

The prime factorization of 28771821 is 9 × 39 × 81971. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 5, 49, 58, 435, 88, 3080, 3182, 37830, 65974, 570759, 486132, 4485162, 3597759, 34891905, 89065591, 445115581, 691056938, 1110922898, 3781967947

Basic calculations (n = 28771821)

Multiplication

n×y
n×2 57543642
n×3 86315463
n×4 115087284
n×5 143859105

Division

n÷y
n÷2 14385910.5
n÷3 9590607
n÷3 7192955.25
n÷5 5754364.2

Exponentiation

ny
n2 827817683656041
n3 2.3817822214786E+22
n4 6.8528211737365E+29
n5 1.9716814415576E+37

Nth Root

y√n
2√n 5363.9370801679
3√n 306.42376888305
4√n 73.238904143685
5√n 31.030835564266

Divisors of 28771821

1, 9, 39, 351, 81971, 737739, 3196869, 28771821

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28771820
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28771821 can be divided by 8 positive divisors. The sum of these divisors (counting 28771821) is 1, the average is 0.125.

Base conversion 28771821

Base System Value
2 Binary 1101101110000010111101101
3 Ternary 2000010202112000
4 Quaternary 1231300113231
5 Quinary 24331144241
6 Senary 2504402513
8 Octal 155602755
10 Decimal 28771821
12 Duodecimal 9776439
16 Hexadecimal 1b705ed
20 Vigesimal 8jg9b1
36 Base36 h4oh9

Cryptographic Hash Functions

md5 a153a341b5a775eb70b6891d2380015c
sha1 b971933c52417a347124adb403a4a445f333b11a
sha256 48103bd9139ff65eacc94b2ac57f475c893e47765c61fbc305f81851370b5270
sha512 652b4f647ae271d1f5bd1c380e6f78d593943fbe547a394c3abcb09c6970ae8cf3253b6eddbef6d2340b9021904486661a5d65f0dd31cdfb698497189fe9b531
ripemd-160 6a52da64cb4ee4484af352b462c303762428b936

28771821 as geometric shapes

Circle

Radius = n
Diameter 57543642
Circumference 180778682.968
Area 2.6006659534855E+15

Sphere

Radius = n
Volume 9.976786039264E+22
Surface area 1.0402663813942E+16
Circumference 180778682.968

Square

Length = n
Perimeter 115087284
Area 827817683656041
Diagonal 40689499.472371

Cube

Length = n
Surface area 4966906101936246
Volume 2.3817822214786E+22
Space diagonal 49834255.798277

Equilateral Triangle

Length = n
Perimeter 86315463
Area 3.5845557187406E+14
Altitude 24917127.899139

Triangular Pyramid

Length = n
Surface area 3.5845557187406E+14
Volume 2.8069572668618E+21
Height 13563166.49079