1998454987 (number)

1998454987 is an odd 10-digits composite number following 1998454986 and preceding 1998454988. In scientific notation, it is written as 1.998454987 × 10^9. The sum of its digits is 64. It has a total of 2 prime factors and 4 positive divisors. There are 1987290256 positive integers (up to 1998454987) that are relatively prime to 1998454987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.998454987 × 10^9
Engineering notation 1.998454987 × 10^9

Prime Factorization of 1998454987

Prime Factorization 179 × 11164553

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1998454987
Product of the distinct prime numbers

The prime factorization of 1998454987 is 179 × 11164553. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 6, 51, 15, 557, 162, 2143, 9791, 41289, 40352, 891147, 117736, 5333502, 8057369, 71178519, 90115023, 94730816, 674761584, 6747925909, 1029362682

Basic calculations (n = 1998454987)

Multiplication

n×y
n×2 3996909974
n×3 5995364961
n×4 7993819948
n×5 9992274935

Division

n÷y
n÷2 999227493.5
n÷3 666151662.33333
n÷3 499613746.75
n÷5 399690997.4

Exponentiation

ny
n2 3993822335065170169
n3 7.981474162703E+27
n4 1.5950616844065E+37
n5 3.1876589777749E+46

Nth Root

y√n
2√n 44704.082442211
3√n 1259.5965339168
4√n 211.43339954277
5√n 72.466764965947

Divisors of 1998454987

1, 179, 11164553, 1998454987

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 -1998454986
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 1998454987 can be divided by 4 positive divisors. The sum of these divisors (counting 1998454987) is 1, the average is 0.25.

Base conversion 1998454987

Base System Value
2 Binary 1110111000111100000000011001011
3 Ternary 12011021110000212101
4 Quaternary 1313013200003023
5 Quinary 13043101024422
6 Senary 530145454231
8 Octal 16707400313
10 Decimal 1998454987
12 Duodecimal 479341377
16 Hexadecimal 771e00cb
20 Vigesimal 1b4a6h97
36 Base36 x1ttqj

Cryptographic Hash Functions

md5 612c49b06e6e414ac4747516d19480f8
sha1 8114fff6aacecfa74bde922a2fa19649af806704
sha256 f67f186bf7eed3e529f0c8200149c93bb4814dc378a564c58660cd0efedaccdd
sha512 d1c5673a580c3807d77818ade4da24a5de18805db06d51ee5f3b075450918b232f72bdd49307a7100f26b4b5f7fff6f32708a1968c352df408987cc0bff28216
ripemd-160 cee43cde7db88d793d2d74161b06cbd38e4bc396

1998454987 as geometric shapes

Circle

Radius = n
Diameter 3996909974
Circumference 12556663011.378
Area 1.2546962907584E+19

Sphere

Radius = n
Volume 3.3432720792486E+28
Surface area 5.0187851630334E+19
Circumference 12556663011.378

Square

Length = n
Perimeter 7993819948
Area 3993822335065170169
Diagonal 2826242146.4075

Cube

Length = n
Surface area 2.3962934010391E+19
Volume 7.981474162703E+27
Space diagonal 3461425574.1234

Equilateral Triangle

Length = n
Perimeter 5995364961
Area 1.7293758001841E+18
Altitude 1730712787.0617

Triangular Pyramid

Length = n
Surface area 1.7293758001841E+18
Volume 9.4062575071875E+26
Height 942080715.46918