1998006987 (number)

1998006987 is an odd 10-digits composite number following 1998006986 and preceding 1998006988. In scientific notation, it is written as 1.998006987 × 10^9. The sum of its digits is 57. It has a total of 3 prime factors and 8 positive divisors. There are 1274091368 positive integers (up to 1998006987) that are relatively prime to 1998006987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.998006987 × 10^9
Engineering notation 1.998006987 × 10^9

Prime Factorization of 1998006987

Prime Factorization 3 × 23 × 28956623

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1998006987
Product of the distinct prime numbers

The prime factorization of 1998006987 is 3 × 23 × 28956623. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 48, 67, 618, 892, 5820, 9781, 26619, 758, 893596, 625379, 4961708, 6403625, 77720579, 22890099, 846728000, 795816973, 3273921717, 9007146500

Basic calculations (n = 1998006987)

Multiplication

n×y
n×2 3996013974
n×3 5994020961
n×4 7992027948
n×5 9990034935

Division

n÷y
n÷2 999003493.5
n÷3 666002329
n÷3 499501746.75
n÷5 399601397.4

Exponentiation

ny
n2 3992031920100818169
n3 7.9761076686885E+27
n4 1.5936318851104E+37
n5 3.1840876411565E+46

Nth Root

y√n
2√n 44699.071433308
3√n 1259.5024042978
4√n 211.42154912238
5√n 72.46351565361

Divisors of 1998006987

1, 3, 23, 69, 28956623, 86869869, 666002329, 1998006987

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 -1998006986
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 1998006987 can be divided by 8 positive divisors. The sum of these divisors (counting 1998006987) is 1, the average is 0.125.

Base conversion 1998006987

Base System Value
2 Binary 1110111000101110010101011001011
3 Ternary 12011020121021022210
4 Quaternary 1313011302223023
5 Quinary 13042442210422
6 Senary 530132120203
8 Octal 16705625313
10 Decimal 1998006987
12 Duodecimal 479166063
16 Hexadecimal 77172acb
20 Vigesimal 1b47ah97
36 Base36 x1k823

Cryptographic Hash Functions

md5 cd4cafcc821cf4a315f72e5ece0bad1f
sha1 b4013be051b86f2cb5586cde766565358c807778
sha256 3336d2985832175e2420115b85c65cfa18173e7472524a47eebb9e47913a1cfa
sha512 cca4740513cc697e9d192080b26587020e292c319cf179ad8e105a57286284b3149509a530fdfac0896d982037829646dde0743ddd39cdc1abe1a4e32ee3d4af
ripemd-160 4071d15fdbd32dcd5bc602284ad455741ccd528f

1998006987 as geometric shapes

Circle

Radius = n
Diameter 3996013974
Circumference 12553848144.361
Area 1.2541338153085E+19

Sphere

Radius = n
Volume 3.3410241674924E+28
Surface area 5.0165352612339E+19
Circumference 12553848144.361

Square

Length = n
Perimeter 7992027948
Area 3992031920100818169
Diagonal 2825608578.7316

Cube

Length = n
Surface area 2.3952191520605E+19
Volume 7.9761076686885E+27
Space diagonal 3460649615.3616

Equilateral Triangle

Length = n
Perimeter 5994020961
Area 1.7286005277628E+18
Altitude 1730324807.6808

Triangular Pyramid

Length = n
Surface area 1.7286005277628E+18
Volume 9.3999330333394E+26
Height 941869526.24387