1990657981 (number)

1990657981 is an odd 10-digits composite number following 1990657980 and preceding 1990657982. In scientific notation, it is written as 1.990657981 × 10^9. The sum of its digits is 55. It has a total of 4 prime factors and 16 positive divisors. There are 1756206144 positive integers (up to 1990657981) that are relatively prime to 1990657981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.990657981 × 10^9
Engineering notation 1.990657981 × 10^9

Prime Factorization of 1990657981

Prime Factorization 23 × 13 × 1877 × 3547

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1990657981
Product of the distinct prime numbers

The prime factorization of 1990657981 is 23 × 13 × 1877 × 3547. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 10, 7, 49, 834, 944, 3903, 8075, 43915, 22702, 264962, 425977, 4370539, 7450271, 69378351, 39414359, 171461619, 353085084, 6734413814, 5985078083

Basic calculations (n = 1990657981)

Multiplication

n×y
n×2 3981315962
n×3 5971973943
n×4 7962631924
n×5 9953289905

Division

n÷y
n÷2 995328990.5
n÷3 663552660.33333
n÷3 497664495.25
n÷5 398131596.2

Exponentiation

ny
n2 3962719197318996361
n3 7.888418596605E+27
n4 1.5703143436801E+37
n5 3.1259587809255E+46

Nth Root

y√n
2√n 44616.790348478
3√n 1257.9562865048
4√n 211.22686938095
5√n 72.410130450312

Divisors of 1990657981

1, 13, 23, 299, 1877, 3547, 24401, 43171, 46111, 81581, 561223, 1060553, 6657719, 86550347, 153127537, 1990657981

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 -1990657980
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 1990657981 can be divided by 16 positive divisors. The sum of these divisors (counting 1990657981) is 1, the average is 0.0625.

Base conversion 1990657981

Base System Value
2 Binary 1110110101001110000011110111101
3 Ternary 12010201202220101101
4 Quaternary 1312221300132331
5 Quinary 13034102023411
6 Senary 525310413101
8 Octal 16651603675
10 Decimal 1990657981
12 Duodecimal 476801191
16 Hexadecimal 76a707bd
20 Vigesimal 1b21c4j1
36 Base36 wx6pj1

Cryptographic Hash Functions

md5 ae4dcc21dd31b5d2b9952e7f08805dbb
sha1 0e62735436eea62890d4f461c0ac1a2e88df4882
sha256 dcd3e226650f134d3da28cf8166077a9f7f89699de116f86363c0eaa7219ee4b
sha512 d210db6d9a66256b74c6ecd639e2fdccf8baf300083cf89503bb6712a3b21f2d18f8d47a229857ea4d693b9479b7130ae855ea741bcf6ada0de365529b2292f3
ripemd-160 3504f02194cfe3d6874a98958bcbd59f39cd0896

1990657981 as geometric shapes

Circle

Radius = n
Diameter 3981315962
Circumference 12507672977.839
Area 1.2449249518537E+19

Sphere

Radius = n
Volume 3.3042930548714E+28
Surface area 4.9796998074146E+19
Circumference 12507672977.839

Square

Length = n
Perimeter 7962631924
Area 3962719197318996361
Diagonal 2815215514.7764

Cube

Length = n
Surface area 2.3776315183914E+19
Volume 7.888418596605E+27
Space diagonal 3447920763.5845

Equilateral Triangle

Length = n
Perimeter 5971973943
Area 1.7159077464713E+18
Altitude 1723960381.7922

Triangular Pyramid

Length = n
Surface area 1.7159077464713E+18
Volume 9.2965904708291E+26
Height 938405171.59215