27991639 (number)

27991639 is an odd 8-digits composite number following 27991638 and preceding 27991640. In scientific notation, it is written as 2.7991639 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors. There are 24316032 positive integers (up to 27991639) that are relatively prime to 27991639.

Interesting facts

Basic properties

Name

Name twenty-seven million nine hundred ninety-one thousand six hundred thirty-nine

Notation

Scientific notation 2.7991639 × 10^7
Engineering notation 2.7991639 × 10^6

Prime Factorization of 27991639

Prime Factorization 13 × 17 × 13 × 9743

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 2153203
Product of the distinct prime numbers

The prime factorization of 27991639 is 13 × 17 × 13 × 9743. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 4, 15, 68, 168, 777, 3141, 3528, 26189, 40086, 562841, 294301, 2765020, 7740785, 28088240, 72127633, 660495283, 274528504, 2324284621, 5725857966

Basic calculations (n = 27991639)

Multiplication

n×y
n×2 55983278
n×3 83974917
n×4 111966556
n×5 139958195

Division

n÷y
n÷2 13995819.5
n÷3 9330546.3333333
n÷3 6997909.75
n÷5 5598327.8

Exponentiation

ny
n2 783531853906321
n3 2.1932340799546E+22
n4 6.1392216608588E+29
n5 1.7184687647174E+37

Nth Root

y√n
2√n 5290.7125229028
3√n 303.62866927338
4√n 72.737284269505
5√n 30.860692393402

Divisors of 27991639

1, 13, 17, 169, 221, 2873, 9743, 126659, 165631, 1646567, 2153203, 27991639

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 -27991638
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 27991639 can be divided by 12 positive divisors. The sum of these divisors (counting 27991639) is 1, the average is 0.083333333333333.

Base conversion 27991639

Base System Value
2 Binary 1101010110001111001010111
3 Ternary 1221200010022101
4 Quaternary 1222301321113
5 Quinary 24131213024
6 Senary 2435542531
8 Octal 152617127
10 Decimal 27991639
12 Duodecimal 945aa47
16 Hexadecimal 1ab1e57
20 Vigesimal 8eij1j
36 Base36 gnyhj

Cryptographic Hash Functions

md5 05beed722fcf79a3103693d71ca6fc02
sha1 afedc1c1742d2953878fc14ded86ae463257e9cf
sha256 8b3b79673d4bf8d61fe5245171ede078f66b5c85388d7a9e0621a03d37729f15
sha512 aab92908861f45929f6976e660c9618fe450e70936f045856a735f274f268ca002e09ba649e50935d12621ab3c469c782815ae42f20b24fe8ebd84ffa3c2ede3
ripemd-160 3ef85f23a0737b494288cf8d2ca8bd7d5ab7a0b1

27991639 as geometric shapes

Circle

Radius = n
Diameter 55983278
Circumference 175876654.88868
Area 2.4615379160857E+15

Sphere

Radius = n
Volume 9.1869974309177E+22
Surface area 9.8461516643428E+15
Circumference 175876654.88868

Square

Length = n
Perimeter 111966556
Area 783531853906321
Diagonal 39586155.506852

Cube

Length = n
Surface area 4701191123437926
Volume 2.1932340799546E+22
Space diagonal 48482940.935126

Equilateral Triangle

Length = n
Perimeter 83974917
Area 3.392792450786E+14
Altitude 24241470.467563

Triangular Pyramid

Length = n
Surface area 3.392792450786E+14
Volume 2.584751151109E+21
Height 13195385.168951