20081990 (number)

20081990 is an even 8-digits composite number following 20081989 and preceding 20081991. In scientific notation, it is written as 2.0081990 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 7683456 positive integers (up to 20081990) that are relatively prime to 20081990.

Interesting facts

Basic properties

Name

Name twenty million eighty-one thousand nine hundred ninety

Notation

Scientific notation 2.0081990 × 10^7
Engineering notation 2.0081990 × 10^6

Prime Factorization of 20081990

Prime Factorization 2 × 5 × 23 × 87313

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20081990
Product of the distinct prime numbers

The prime factorization of 20081990 is 2 × 5 × 23 × 87313. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 19, 46, 940, 366, 7881, 7304, 90592, 54413, 750696, 544131, 7384772, 7346272, 65471659, 56504092, 753779825, 772619011, 6395605846, 3003577459

Basic calculations (n = 20081990)

Multiplication

n×y
n×2 40163980
n×3 60245970
n×4 80327960
n×5 100409950

Division

n÷y
n÷2 10040995
n÷3 6693996.6666667
n÷3 5020497.5
n÷5 4016398

Exponentiation

ny
n2 403286322360100
n3 8.0987918927723E+21
n4 1.6263985780273E+29
n5 3.2661319979959E+36

Nth Root

y√n
2√n 4481.2933400973
3√n 271.81218110881
4√n 66.942462907315
5√n 28.877616812955

Divisors of 20081990

1, 2, 5, 10, 23, 46, 115, 230, 87313, 174626, 436565, 873130, 2008199, 4016398, 10040995, 20081990

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 -20081989
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 20081990 can be divided by 16 positive divisors. The sum of these divisors (counting 20081990) is 1, the average is 0.0625.

Base conversion 20081990

Base System Value
2 Binary 1001100100110110101000110
3 Ternary 1101210021022102
4 Quaternary 1030212311012
5 Quinary 20120110430
6 Senary 1554232102
8 Octal 114466506
10 Decimal 20081990
12 Duodecimal 6885632
16 Hexadecimal 1326d46
20 Vigesimal 65a4ja
36 Base36 byfd2

Cryptographic Hash Functions

md5 efb75fc0eccd04cc98b753d3518833e4
sha1 d248d9a2ccea5581cc34e0f5650da12b0da94f9a
sha256 019a6b0385c7ccc23627c013943183793721e0bdef2db87d0ce62ba7f64a37fe
sha512 8c348e6a0ce83fbecfa326f1b4265f469a37323a83dfec9256856af7bf21188922cc47e4fa567e13e2a2d3e2fb12d555dc054455ab5f788a64f311c323dc4ed9
ripemd-160 0c99168996c71d61dc36b6b59777afd74d20deae

20081990 as geometric shapes

Circle

Radius = n
Diameter 40163980
Circumference 126178864.50693
Area 1.2669613476197E+15

Sphere

Radius = n
Volume 3.3924140151048E+22
Surface area 5.0678453904789E+15
Circumference 126178864.50693

Square

Length = n
Perimeter 80327960
Area 403286322360100
Diagonal 28400222.617441

Cube

Length = n
Surface area 2419717934160600
Volume 8.0987918927723E+21
Space diagonal 34783026.99709

Equilateral Triangle

Length = n
Perimeter 60245970
Area 1.7462810008132E+14
Altitude 17391513.498545

Triangular Pyramid

Length = n
Surface area 1.7462810008132E+14
Volume 9.5445177779966E+20
Height 9466740.8724803