20181940 (number)

20181940 is an even 8-digits composite number following 20181939 and preceding 20181941. In scientific notation, it is written as 2.0181940 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 8072768 positive integers (up to 20181940) that are relatively prime to 20181940.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-one thousand nine hundred forty

Notation

Scientific notation 2.0181940 × 10^7
Engineering notation 2.0181940 × 10^6

Prime Factorization of 20181940

Prime Factorization 2 × 2 × 5 × 1009097

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10090970
Product of the distinct prime numbers

The prime factorization of 20181940 is 2 × 2 × 5 × 1009097. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 10, 60, 39, 678, 565, 3793, 3129, 8049, 65746, 363831, 718382, 9035383, 7019892, 53274339, 95373886, 307020274, 929258967, 2794518830, 1829614886

Basic calculations (n = 20181940)

Multiplication

n×y
n×2 40363880
n×3 60545820
n×4 80727760
n×5 100909700

Division

n÷y
n÷2 10090970
n÷3 6727313.3333333
n÷3 5045485
n÷5 4036388

Exponentiation

ny
n2 407310702163600
n3 8.2203201524236E+21
n4 1.65902008097E+29
n5 3.3482243732933E+36

Nth Root

y√n
2√n 4492.4314129433
3√n 272.2623801802
4√n 67.025602667513
5√n 28.906305092431

Divisors of 20181940

1, 2, 4, 5, 10, 20, 1009097, 2018194, 4036388, 5045485, 10090970, 20181940

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20181939
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20181940 can be divided by 12 positive divisors. The sum of these divisors (counting 20181940) is 1, the average is 0.083333333333333.

Base conversion 20181940

Base System Value
2 Binary 1001100111111001110110100
3 Ternary 1101222100102021
4 Quaternary 1030333032310
5 Quinary 20131310230
6 Senary 2000322524
8 Octal 114771664
10 Decimal 20181940
12 Duodecimal 6913444
16 Hexadecimal 133f3b4
20 Vigesimal 662eh0
36 Base36 c0khg

Cryptographic Hash Functions

md5 400ec07354701b9265e4ac62d719080c
sha1 141c3693d55ec97cb2fb303928e2f3e1e1fc3b11
sha256 d9a95c26c81998a869349e244092296c5010a1a66d0af0f8d5a3dbb19b98013e
sha512 c16a3731e599fa04c06af429afa8a123467daaa1d970cfc6e703b7a0146785331880200ad3a0bda2e7550ba8e1623cbb0c5bb4792aec3721f1c897f204e00e2c
ripemd-160 72c3c999b1b1179b73829341132c0513d0c7acfc

20181940 as geometric shapes

Circle

Radius = n
Diameter 40363880
Circumference 126806868.87838
Area 1.2796043096457E+15

Sphere

Radius = n
Volume 3.443319653468E+22
Surface area 5.1184172385827E+15
Circumference 126806868.87838

Square

Length = n
Perimeter 80727760
Area 407310702163600
Diagonal 28541573.263

Cube

Length = n
Surface area 2443864212981600
Volume 8.2203201524236E+21
Space diagonal 34956145.475307

Equilateral Triangle

Length = n
Perimeter 60545820
Area 1.7637070765348E+14
Altitude 17478072.737653

Triangular Pyramid

Length = n
Surface area 1.7637070765348E+14
Volume 9.6877402055053E+20
Height 9513857.7543334