1998706987 (number)

1998706987 is an odd 10-digits composite number following 1998706986 and preceding 1998706988. In scientific notation, it is written as 1.998706987 × 10^9. The sum of its digits is 64. It has a total of 2 prime factors and 4 positive divisors. There are 1995597936 positive integers (up to 1998706987) that are relatively prime to 1998706987.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety-eight million seven hundred six thousand nine hundred eighty-seven

Notation

Scientific notation 1.998706987 × 10^9
Engineering notation 1.998706987 × 10^9

Prime Factorization of 1998706987

Prime Factorization 643 × 3108409

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1998706987
Product of the distinct prime numbers

The prime factorization of 1998706987 is 643 × 3108409. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 3, 9, 719, 908, 2809, 622, 47283, 22101, 44090, 233439, 1275411, 7188646, 54828785, 82854413, 354274277, 548487487, 8045847318, 3844614159

Basic calculations (n = 1998706987)

Multiplication

n×y
n×2 3997413974
n×3 5996120961
n×4 7994827948
n×5 9993534935

Division

n÷y
n÷2 999353493.5
n÷3 666235662.33333
n÷3 499676746.75
n÷5 399741397.4

Exponentiation

ny
n2 3994829619882618169
n3 7.9844938731339E+27
n4 1.5958663691892E+37
n5 3.1896692624167E+46

Nth Root

y√n
2√n 44706.900887894
3√n 1259.6494756455
4√n 211.44006452868
5√n 72.468592448063

Divisors of 1998706987

1, 643, 3108409, 1998706987

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 -1998706986
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 1998706987 can be divided by 4 positive divisors. The sum of these divisors (counting 1998706987) is 1, the average is 0.25.

Base conversion 1998706987

Base System Value
2 Binary 1110111001000011101100100101011
3 Ternary 12011021220211112201
4 Quaternary 1313020131210223
5 Quinary 13043132110422
6 Senary 530155121031
8 Octal 16710354453
10 Decimal 1998706987
12 Duodecimal 479443177
16 Hexadecimal 7721d92b
20 Vigesimal 1b4bi797
36 Base36 x1z86j

Cryptographic Hash Functions

md5 8fea75f2554e121f719d4c83245d45a5
sha1 75e61ef02ea5798620c0ccf4c1b2d62595a846bb
sha256 36b9d46c37efa2f34df5c66a384b713e948825cdc1be2a19cae5b698feb2ef75
sha512 7ec42f711b8961a8de0fb70266ab37a8d593f0d076d62e2779648dcb2b9b7aa0630f6890c0dfec35f91a5f7ae824a849673de8c7153f57d04dce51a285b20411
ripemd-160 ff3077dfcbd50829abc9c909b3384bca0972f21e

1998706987 as geometric shapes

Circle

Radius = n
Diameter 3997413974
Circumference 12558246374.076
Area 1.2550127386166E+19

Sphere

Radius = n
Volume 3.344536972596E+28
Surface area 5.0200509544665E+19
Circumference 12558246374.076

Square

Length = n
Perimeter 7994827948
Area 3994829619882618169
Diagonal 2826598528.2253

Cube

Length = n
Surface area 2.3968977719296E+19
Volume 7.9844938731339E+27
Space diagonal 3461862050.9269

Equilateral Triangle

Length = n
Perimeter 5996120961
Area 1.7298119673044E+18
Altitude 1730931025.4635

Triangular Pyramid

Length = n
Surface area 1.7298119673044E+18
Volume 9.4098162700591E+26
Height 942199509.40842