1990644945 (number)

1990644945 is an odd 10-digits composite number following 1990644944 and preceding 1990644946. In scientific notation, it is written as 1.990644945 × 10^9. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 1061677296 positive integers (up to 1990644945) that are relatively prime to 1990644945.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety million six hundred forty-four thousand nine hundred forty-five

Notation

Scientific notation 1.990644945 × 10^9
Engineering notation 1.990644945 × 10^9

Prime Factorization of 1990644945

Prime Factorization 15 × 132709663

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1990644945
Product of the distinct prime numbers

The prime factorization of 1990644945 is 15 × 132709663. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 4, 9, 24, 24, 601, 1437, 8447, 89228, 52179, 612281, 4612, 367968, 4400304, 27415184, 70113947, 629955330, 711222251, 6713267640, 7168054060

Basic calculations (n = 1990644945)

Multiplication

n×y
n×2 3981289890
n×3 5971934835
n×4 7962579780
n×5 9953224725

Division

n÷y
n÷2 995322472.5
n÷3 663548315
n÷3 497661236.25
n÷5 398128989

Exponentiation

ny
n2 3962667297054053025
n3 7.8882636235975E+27
n4 1.5702732107142E+37
n5 3.1258564291771E+46

Nth Root

y√n
2√n 44616.644259738
3√n 1257.9535405528
4√n 211.22652357064
5√n 72.410035613234

Divisors of 1990644945

1, 15, 132709663, 1990644945

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 -1990644944
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 1990644945 can be divided by 4 positive divisors. The sum of these divisors (counting 1990644945) is 1, the average is 0.25.

Base conversion 1990644945

Base System Value
2 Binary 1110110101001101101010011010001
3 Ternary 12010201202020111120
4 Quaternary 1312221231103101
5 Quinary 13034101114240
6 Senary 525310232453
8 Octal 16651552321
10 Decimal 1990644945
12 Duodecimal 4767b5729
16 Hexadecimal 76a6d4d1
20 Vigesimal 1b21ac75
36 Base36 wx6fgx

Cryptographic Hash Functions

md5 bd0a36e723a61b7f7d6cd6a3852a6c4a
sha1 4bb2b5ceac1020afd0c1e76c5531a34097274c67
sha256 c976047f58370ed3765d2957e696c9c4b7832074eafd80a230d46da81b357544
sha512 a13a4c364bd56688c25c221fae9e5ab9940a29bd5e5d24e0c2c27d8fe6a31f612f5cd9de5f6961bfcebcf30fa708954a105dcd5efe1ddd18955b00ba3f5da9eb
ripemd-160 a8dde7296992ebab46b4d0045ec3cd428054821a

1990644945 as geometric shapes

Circle

Radius = n
Diameter 3981289890
Circumference 12507591070.235
Area 1.2449086469046E+19

Sphere

Radius = n
Volume 3.3042281399298E+28
Surface area 4.9796345876182E+19
Circumference 12507591070.235

Square

Length = n
Perimeter 7962579780
Area 3962667297054053025
Diagonal 2815197079.0884

Cube

Length = n
Surface area 2.3776003782324E+19
Volume 7.8882636235975E+27
Space diagonal 3447898184.5702

Equilateral Triangle

Length = n
Perimeter 5971934835
Area 1.7158852729973E+18
Altitude 1723949092.2851

Triangular Pyramid

Length = n
Surface area 1.7158852729973E+18
Volume 9.2964078333882E+26
Height 938399026.36281