991087989 (number)

991087989 is an odd 9-digits composite number following 991087988 and preceding 991087990. In scientific notation, it is written as 9.91087989 × 10^8. The sum of its digits is 60. It has a total of 2 prime factors and 4 positive divisors. There are 660725324 positive integers (up to 991087989) that are relatively prime to 991087989.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.91087989 × 10^8
Engineering notation 9.91087989 × 10^6

Prime Factorization of 991087989

Prime Factorization 3 × 330362663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 991087989
Product of the distinct prime numbers

The prime factorization of 991087989 is 3 × 330362663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 36, 1, 832, 458, 7278, 8904, 30074, 76683, 237503, 820369, 6693986, 7043867, 32500185, 98469521, 113383444, 805463649, 2328269406, 9344356112

Basic calculations (n = 991087989)

Multiplication

n×y
n×2 1982175978
n×3 2973263967
n×4 3964351956
n×5 4955439945

Division

n÷y
n÷2 495543994.5
n÷3 330362663
n÷3 247771997.25
n÷5 198217597.8

Exponentiation

ny
n2 982255401940064121
n3 9.7350153099316E+26
n4 9.6482567464044E+35
n5 9.5622713761496E+44

Nth Root

y√n
2√n 31481.549977725
3√n 997.02046083011
4√n 177.43040883041
5√n 62.982869409996

Divisors of 991087989

1, 3, 330362663, 991087989

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 -991087988
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 991087989 can be divided by 4 positive divisors. The sum of these divisors (counting 991087989) is 1, the average is 0.25.

Base conversion 991087989

Base System Value
2 Binary 111011000100101100110101110101
3 Ternary 2120001220111010120
4 Quaternary 323010230311311
5 Quinary 4012204303424
6 Senary 242202242153
8 Octal 7304546565
10 Decimal 991087989
12 Duodecimal 237ab6359
16 Hexadecimal 3b12cd75
20 Vigesimal f9e5jj9
36 Base36 ge2gdx

Cryptographic Hash Functions

md5 4fd79da2b15d10811ec805378d10b296
sha1 65e1ab5edf75dc8faf1713a09a57da455d4d7bc9
sha256 775a7ca2a5fd77eea62e7e4821effa1bc9066f61434d33f8282a62947b9f7284
sha512 0d8de1190ef3261ebd9d2ecc4db12345d5b27aad18ae3c5ba6efa3040bd14f232d30be5c83eda77da7220407322d5be201f1970210238c3af377bfb8e09bbde7
ripemd-160 1dcae87aff067f9c74242d44ff5cef798a4b6cbf

991087989 as geometric shapes

Circle

Radius = n
Diameter 1982175978
Circumference 6227189490.607
Area 3.0858463546838E+18

Sphere

Radius = n
Volume 4.0777936773687E+27
Surface area 1.2343385418735E+19
Circumference 6227189490.607

Square

Length = n
Perimeter 3964351956
Area 982255401940064121
Diagonal 1401610075.5489

Cube

Length = n
Surface area 5893532411640384726
Volume 9.7350153099316E+26
Space diagonal 1716614751.7193

Equilateral Triangle

Length = n
Perimeter 2973263967
Area 4.253290655423E+17
Altitude 858307375.85963

Triangular Pyramid

Length = n
Surface area 4.253290655423E+17
Volume 1.1472825567679E+26
Height 467203358.51629