990806921 (number)

990806921 is an odd 9-digits composite number following 990806920 and preceding 990806922. In scientific notation, it is written as 9.90806921 × 10^8. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 900939600 positive integers (up to 990806921) that are relatively prime to 990806921.

Interesting facts

Basic properties

Name

Name nine hundred ninety million eight hundred six thousand nine hundred twenty-one

Notation

Scientific notation 9.90806921 × 10^8
Engineering notation 9.90806921 × 10^6

Prime Factorization of 990806921

Prime Factorization 13 × 67 × 1137551

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 990806921
Product of the distinct prime numbers

The prime factorization of 990806921 is 13 × 67 × 1137551. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 7, 33, 28, 363, 868, 1924, 5152, 89029, 68187, 741780, 963732, 7639805, 3566489, 19845434, 89476751, 468845933, 965791591, 5293097624, 1975844569

Basic calculations (n = 990806921)

Multiplication

n×y
n×2 1981613842
n×3 2972420763
n×4 3963227684
n×5 4954034605

Division

n÷y
n÷2 495403460.5
n÷3 330268973.66667
n÷3 247701730.25
n÷5 198161384.2

Exponentiation

ny
n2 981698354701500241
n3 9.7267352417256E+26
n4 9.6373165962363E+35
n5 9.5487199834191E+44

Nth Root

y√n
2√n 31477.085649723
3√n 996.92620177848
4√n 177.41782788019
5√n 62.979296674212

Divisors of 990806921

1, 13, 67, 871, 1137551, 14788163, 76215917, 990806921

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 -990806920
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 990806921 can be divided by 8 positive divisors. The sum of these divisors (counting 990806921) is 1, the average is 0.125.

Base conversion 990806921

Base System Value
2 Binary 111011000011101000001110001001
3 Ternary 2120001101012120122
4 Quaternary 323003220032021
5 Quinary 4012121310141
6 Senary 242152233025
8 Octal 7303501611
10 Decimal 990806921
12 Duodecimal 23799b775
16 Hexadecimal 3b0e8389
20 Vigesimal f9cah61
36 Base36 gdwfih

Cryptographic Hash Functions

md5 5c0c7855176bf3d3ed5966724b458926
sha1 7d5c4ba19bc3c40d8967a68b3356ac0a6f9a01b7
sha256 ad17788248fa69a957e9ae0991f612a4b741e2805b225241e3d4042a863513e1
sha512 980a5497c5f9128c87bb0c82b9a0fa1af3f7a5274f6c95b87f817e87be1b1b973e57308f42b092e93c4577919a03d37da98a742cae1b64316f709fd4598e8d2e
ripemd-160 c6f17b126f0552431f9d443766197702adecee52

990806921 as geometric shapes

Circle

Radius = n
Diameter 1981613842
Circumference 6225423488.279
Area 3.0840963391714E+18

Sphere

Radius = n
Volume 4.0743253305091E+27
Surface area 1.2336385356686E+19
Circumference 6225423488.279

Square

Length = n
Perimeter 3963227684
Area 981698354701500241
Diagonal 1401212585.3713

Cube

Length = n
Surface area 5890190128209001446
Volume 9.7267352417256E+26
Space diagonal 1716127927.6629

Equilateral Triangle

Length = n
Perimeter 2972420763
Area 4.2508785701244E+17
Altitude 858063963.83144

Triangular Pyramid

Length = n
Surface area 4.2508785701244E+17
Volume 1.1463067413717E+26
Height 467070861.79044