1998662978 (number)

1998662978 is an even 10-digits composite number following 1998662977 and preceding 1998662979. In scientific notation, it is written as 1.998662978 × 10^9. The sum of its digits is 65. It has a total of 4 prime factors and 16 positive divisors. There are 920263680 positive integers (up to 1998662978) that are relatively prime to 1998662978.

Interesting facts

Basic properties

Name

Name one billion nine hundred ninety-eight million six hundred sixty-two thousand nine hundred seventy-eight

Notation

Scientific notation 1.998662978 × 10^9
Engineering notation 1.998662978 × 10^9

Prime Factorization of 1998662978

Prime Factorization 2 × 13 × 421 × 182593

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1998662978
Product of the distinct prime numbers

The prime factorization of 1998662978 is 2 × 13 × 421 × 182593. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 56, 97, 542, 907, 4883, 7963, 76217, 60429, 766849, 659701, 9499212, 7228203, 11233030, 82938915, 997568941, 211752388, 9748437003, 4975854514

Basic calculations (n = 1998662978)

Multiplication

n×y
n×2 3997325956
n×3 5995988934
n×4 7994651912
n×5 9993314890

Division

n÷y
n÷2 999331489
n÷3 666220992.66667
n÷3 499665744.5
n÷5 399732595.6

Exponentiation

ny
n2 3994653699627828484
n3 7.9839664593769E+27
n4 1.595725817995E+37
n5 3.1893181154654E+46

Nth Root

y√n
2√n 44706.408690477
3√n 1259.6402302816
4√n 211.43890060837
5√n 72.468273311902

Divisors of 1998662978

1, 2, 13, 26, 421, 842, 5473, 10946, 182593, 365186, 2373709, 4747418, 76871653, 153743306, 999331489, 1998662978

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1998662977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1998662978 can be divided by 16 positive divisors. The sum of these divisors (counting 1998662978) is 1, the average is 0.0625.

Base conversion 1998662978

Base System Value
2 Binary 1110111001000010010110101000010
3 Ternary 12011021211121011202
4 Quaternary 1313020102311002
5 Quinary 13043124203403
6 Senary 530154141202
8 Octal 16710226502
10 Decimal 1998662978
12 Duodecimal 479421802
16 Hexadecimal 77212d42
20 Vigesimal 1b4bch8i
36 Base36 x1ya82

Cryptographic Hash Functions

md5 643559dd1ea41e3c1099c31e26d79064
sha1 177676814bb8f23002f58a5a27a10d838aa94a0c
sha256 f4a5bdb31628b2ebd5a68180a69b82b02ad58add6f11fb81399111de2d314550
sha512 1386c0ab7dc6d3f990eec1be21b165db57729619be4e4ae20e302e4c165bc00a0adbde13046e53e21c942ca6e75d816b07b7b5ada474b7d83792c4a3da06a0e3
ripemd-160 62c62de912ab6c86ef2905de3125c0e1acf8aa71

1998662978 as geometric shapes

Circle

Radius = n
Diameter 3997325956
Circumference 12557969857.373
Area 1.2549574716386E+19

Sphere

Radius = n
Volume 3.3443160500381E+28
Surface area 5.0198298865544E+19
Circumference 12557969857.373

Square

Length = n
Perimeter 7994651912
Area 3994653699627828484
Diagonal 2826536290.1006

Cube

Length = n
Surface area 2.3967922197767E+19
Volume 7.9839664593769E+27
Space diagonal 3461785825.1029

Equilateral Triangle

Length = n
Perimeter 5995988934
Area 1.7297357915996E+18
Altitude 1730892912.5515

Triangular Pyramid

Length = n
Surface area 1.7297357915996E+18
Volume 9.4091947069856E+26
Height 942178763.36687