28207978 (number)

28207978 is an even 8-digits composite number following 28207977 and preceding 28207979. In scientific notation, it is written as 2.8207978 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 13835120 positive integers (up to 28207978) that are relatively prime to 28207978.

Interesting facts

Basic properties

Name

Name twenty-eight million two hundred seven thousand nine hundred seventy-eight

Notation

Scientific notation 2.8207978 × 10^7
Engineering notation 2.8207978 × 10^6

Prime Factorization of 28207978

Prime Factorization 2 × 53 × 53 × 5021

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 532226
Product of the distinct prime numbers

The prime factorization of 28207978 is 2 × 53 × 53 × 5021. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 7, 97, 80, 363, 856, 4603, 892, 88750, 66060, 188497, 131440, 8180734, 5215588, 93723259, 82187407, 808767587, 650306493, 2677078813, 3591183933

Basic calculations (n = 28207978)

Multiplication

n×y
n×2 56415956
n×3 84623934
n×4 112831912
n×5 141039890

Division

n÷y
n÷2 14103989
n÷3 9402659.3333333
n÷3 7051994.5
n÷5 5641595.6

Exponentiation

ny
n2 795690022848484
n3 2.244480665933E+22
n4 6.3312261246062E+29
n5 1.7859108723592E+37

Nth Root

y√n
2√n 5311.1183379774
3√n 304.40888107426
4√n 72.877419945944
5√n 30.908248212897

Divisors of 28207978

1, 2, 53, 106, 2809, 5021, 5618, 10042, 266113, 532226, 14103989, 28207978

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28207977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28207978 can be divided by 12 positive divisors. The sum of these divisors (counting 28207978) is 1, the average is 0.083333333333333.

Base conversion 28207978

Base System Value
2 Binary 1101011100110101101101010
3 Ternary 1222002010001221
4 Quaternary 1223212231222
5 Quinary 24210123403
6 Senary 2444332254
8 Octal 153465552
10 Decimal 28207978
12 Duodecimal 954408a
16 Hexadecimal 1ae6b6a
20 Vigesimal 8g5jii
36 Base36 gsley

Cryptographic Hash Functions

md5 f3479b463f7bc2144f0caf9a1b86fe83
sha1 631467aafa162b08b45de49060cbf3e7af0d3c13
sha256 c6539bad21666ce6d967dcdf055f148435fd14ff32b8ee11cbd0e0219274e17f
sha512 b4decd180657edd38e0fb2b454bcfc5f749006ae8ec160147ca34999e15223a035941cc0eaf7d411b741bdb38a88b3818fe1087cb74ce5817dd712d476cc9db1
ripemd-160 b19ccc074c2879ec33ef508ffb1d70fa1b15bf8a

28207978 as geometric shapes

Circle

Radius = n
Diameter 56415956
Circumference 177235952.91485
Area 2.4997339303155E+15

Sphere

Radius = n
Volume 9.4016586282924E+22
Surface area 9.998935721262E+15
Circumference 177235952.91485

Square

Length = n
Perimeter 112831912
Area 795690022848484
Diagonal 39892105.054722

Cube

Length = n
Surface area 4774140137090904
Volume 2.244480665933E+22
Space diagonal 48857651.074785

Equilateral Triangle

Length = n
Perimeter 84623934
Area 3.445438866623E+14
Altitude 24428825.537393

Triangular Pyramid

Length = n
Surface area 3.445438866623E+14
Volume 2.6451458318721E+21
Height 13297368.351574