27991909 (number)

27991909 is an odd 8-digits composite number following 27991908 and preceding 27991910. In scientific notation, it is written as 2.7991909 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors. There are 25339200 positive integers (up to 27991909) that are relatively prime to 27991909.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.7991909 × 10^7
Engineering notation 2.7991909 × 10^6

Prime Factorization of 27991909

Prime Factorization 11 × 241 × 10559

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 27991909
Product of the distinct prime numbers

The prime factorization of 27991909 is 11 × 241 × 10559. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 27991909)

Multiplication

n×y
n×2 55983818
n×3 83975727
n×4 111967636
n×5 139959545

Division

n÷y
n÷2 13995954.5
n÷3 9330636.3333333
n÷3 6997977.25
n÷5 5598381.8

Exponentiation

ny
n2 783546969464281
n3 2.193297546647E+22
n4 6.1394585335666E+29
n5 1.7185516458087E+37

Nth Root

y√n
2√n 5290.7380392531
3√n 303.62964551105
4√n 72.737459670057
5√n 30.860751928

Divisors of 27991909

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 -27991908
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 27991909 can be divided by 8 positive divisors. The sum of these divisors (counting 27991909) is 1, the average is 0.125.

Base conversion 27991909

Base System Value
2 Binary 1101010110001111101100101
3 Ternary 1221200010200101
4 Quaternary 1222301331211
5 Quinary 24131220114
6 Senary 2435544101
8 Octal 152617545
10 Decimal 27991909
12 Duodecimal 945b031
16 Hexadecimal 1ab1f65
20 Vigesimal 8eijf9
36 Base36 gnyp1

Cryptographic Hash Functions

md5 23740dd500ebe4a097ab8a5f20c0ac81
sha1 0c63d70094665125d593278ea39e5f1380aebe82
sha256 09235186bfacb6cc029d6529eed595b8557990e464e4d0fb4fe55ab5e49f3b38
sha512 f9978c3913ca19c07491df6035c26a4657d715d281b77df55ebf2b1cfacf916211a5448d8eab56eef5af07a35407d3b0ee3d2e294eacb530185a93d2ead0d948
ripemd-160 45a98f3af0ba3b0e24a06dc14afda6ca50677ce3

27991909 as geometric shapes

Circle

Radius = n
Diameter 55983818
Circumference 175878351.34871
Area 2.4615854030115E+15

Sphere

Radius = n
Volume 9.1872632795769E+22
Surface area 9.8463416120461E+15
Circumference 175878351.34871

Square

Length = n
Perimeter 111967636
Area 783546969464281
Diagonal 39586537.344514

Cube

Length = n
Surface area 4701281816785686
Volume 2.193297546647E+22
Space diagonal 48483408.588845

Equilateral Triangle

Length = n
Perimeter 83975727
Area 3.3928579030719E+14
Altitude 24241704.294422

Triangular Pyramid

Length = n
Surface area 3.3928579030719E+14
Volume 2.5848259473232E+21
Height 13195512.448171