20131818 (number)

20131818 is an even 8-digits composite number following 20131817 and preceding 20131819. In scientific notation, it is written as 2.0131818 × 10^7. The sum of its digits is 24. It has a total of 5 prime factors and 32 positive divisors. There are 5706480 positive integers (up to 20131818) that are relatively prime to 20131818.

Interesting facts

Basic properties

Name

Name twenty million one hundred thirty-one thousand eight hundred eighteen

Notation

Scientific notation 2.0131818 × 10^7
Engineering notation 2.0131818 × 10^6

Prime Factorization of 20131818

Prime Factorization 2 × 7 × 3 × 131 × 3659

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20131818
Product of the distinct prime numbers

The prime factorization of 20131818 is 2 × 7 × 3 × 131 × 3659. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 5, 90, 81, 407, 351, 5461, 9011, 1692, 45797, 102607, 157238, 1394306, 6841091, 13622523, 21486302, 830300886, 702021839, 7721549551, 1714575637

Basic calculations (n = 20131818)

Multiplication

n×y
n×2 40263636
n×3 60395454
n×4 80527272
n×5 100659090

Division

n÷y
n÷2 10065909
n÷3 6710606
n÷3 5032954.5
n÷5 4026363.6

Exponentiation

ny
n2 405290095985124
n3 8.159226449575E+21
n4 1.6426006190363E+29
n5 3.3068536709126E+36

Nth Root

y√n
2√n 4486.8494514525
3√n 272.03680478033
4√n 66.983949207646
5√n 28.89193300277

Divisors of 20131818

1, 2, 3, 6, 7, 14, 21, 42, 131, 262, 393, 786, 917, 1834, 2751, 3659, 5502, 7318, 10977, 21954, 25613, 51226, 76839, 153678, 479329, 958658, 1437987, 2875974, 3355303, 6710606, 10065909, 20131818

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20131817
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20131818 can be divided by 32 positive divisors. The sum of these divisors (counting 20131818) is 1, the average is 0.03125.

Base conversion 20131818

Base System Value
2 Binary 1001100110010111111101010
3 Ternary 1101212210122220
4 Quaternary 1030302333222
5 Quinary 20123204233
6 Senary 1555254510
8 Octal 114627752
10 Decimal 20131818
12 Duodecimal 68aa436
16 Hexadecimal 1332fea
20 Vigesimal 65g9ai
36 Base36 bzht6

Cryptographic Hash Functions

md5 d4453598a7ebf81bde273dcf3f0e489b
sha1 a7cb403426d94f5ceda28e0dae0471dfe0da47c4
sha256 e72291c8536c9e1cc5c6745e0f0ca707ec80d38e4f25f85598ffe06f105e3926
sha512 968d1d3ed2edf66e28c2d10010aff830387bc433a83e29ba96f7cd29ae18410ae7e088a958225c025927c2a0208ff6950589b8b67adaf9805e47ea6cf36585f2
ripemd-160 6e4b95034683a21f243280f8fc2ca5e0946c91f2

20131818 as geometric shapes

Circle

Radius = n
Diameter 40263636
Circumference 126491943.06441
Area 1.2732563881196E+15

Sphere

Radius = n
Volume 3.4177287830614E+22
Surface area 5.0930255524783E+15
Circumference 126491943.06441

Square

Length = n
Perimeter 80527272
Area 405290095985124
Diagonal 28470690.050827

Cube

Length = n
Surface area 2431740575910744
Volume 8.159226449575E+21
Space diagonal 34869331.62473

Equilateral Triangle

Length = n
Perimeter 60395454
Area 1.7549575951268E+14
Altitude 17434665.812365

Triangular Pyramid

Length = n
Surface area 1.7549575951268E+14
Volume 9.6157405862186E+20
Height 9490230.0169423