27988891 (number)

27988891 is an odd 8-digits composite number following 27988890 and preceding 27988892. In scientific notation, it is written as 2.7988891 × 10^7. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 23990472 positive integers (up to 27988891) that are relatively prime to 27988891.

Interesting facts

Basic properties

Name

Name twenty-seven million nine hundred eighty-eight thousand eight hundred ninety-one

Notation

Scientific notation 2.7988891 × 10^7
Engineering notation 2.7988891 × 10^6

Prime Factorization of 27988891

Prime Factorization 7 × 3998413

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 27988891
Product of the distinct prime numbers

The prime factorization of 27988891 is 7 × 3998413. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 48, 71, 647, 561, 5954, 6116, 40474, 86288, 798318, 880387, 2832884, 7149912, 69934974, 74314817, 96143665, 370438998, 2315087806, 9851240605

Basic calculations (n = 27988891)

Multiplication

n×y
n×2 55977782
n×3 83966673
n×4 111955564
n×5 139944455

Division

n÷y
n÷2 13994445.5
n÷3 9329630.3333333
n÷3 6997222.75
n÷5 5597778.2

Exponentiation

ny
n2 783378019409881
n3 2.1925881997059E+22
n4 6.1368112129455E+29
n5 1.7176254012671E+37

Nth Root

y√n
2√n 5290.4528161586
3√n 303.61873298623
4√n 72.735499009483
5√n 30.860086437366

Divisors of 27988891

1, 7, 3998413, 27988891

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 -27988890
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 27988891 can be divided by 4 positive divisors. The sum of these divisors (counting 27988891) is 1, the average is 0.25.

Base conversion 27988891

Base System Value
2 Binary 1101010110001001110011011
3 Ternary 1221122222112121
4 Quaternary 1222301032123
5 Quinary 24131121031
6 Senary 2435522111
8 Octal 152611633
10 Decimal 27988891
12 Duodecimal 9459337
16 Hexadecimal 1ab139b
20 Vigesimal 8eic4b
36 Base36 gnwd7

Cryptographic Hash Functions

md5 696a06cf129880f9217861061e21d05c
sha1 b786e8cf1e5e4f465c24c24278513c7b51f8409f
sha256 20c998f29fe9593d4c28089fab80e9345b9238e2da52fab3f9c48de578cf65c2
sha512 7c36b9b9cb8ec85215f8255db1ed980898e89c44a87f0d270e612b14bb855664200b55b7784d19dd0c9da1831c942a2c77a78587d7c8ec405977317f68ff1576
ripemd-160 9c6adee1466d7854f0e2c7a5fa88f1dc3b86fffc

27988891 as geometric shapes

Circle

Radius = n
Diameter 55977782
Circumference 175859388.69545
Area 2.4610546307618E+15

Sphere

Radius = n
Volume 9.1842919740583E+22
Surface area 9.8442185230472E+15
Circumference 175859388.69545

Square

Length = n
Perimeter 111955564
Area 783378019409881
Diagonal 39582269.247982

Cube

Length = n
Surface area 4700268116459286
Volume 2.1925881997059E+22
Space diagonal 48478181.259507

Equilateral Triangle

Length = n
Perimeter 83966673
Area 3.3921263278765E+14
Altitude 24239090.629754

Triangular Pyramid

Length = n
Surface area 3.3921263278765E+14
Volume 2.5839899739361E+21
Height 13194089.749327