20731388 (number)

20731388 is an even 8-digits composite number following 20731387 and preceding 20731389. In scientific notation, it is written as 2.0731388 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors. There are 10289760 positive integers (up to 20731388) that are relatively prime to 20731388.

Interesting facts

Basic properties

Name

Name twenty million seven hundred thirty-one thousand three hundred eighty-eight

Notation

Scientific notation 2.0731388 × 10^7
Engineering notation 2.0731388 × 10^6

Prime Factorization of 20731388

Prime Factorization 2 × 2 × 137 × 37831

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10365694
Product of the distinct prime numbers

The prime factorization of 20731388 is 2 × 2 × 137 × 37831. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 3, 91, 31, 181, 502, 2722, 9771, 52520, 34100, 371003, 124319, 9171473, 7237546, 75653259, 17712295, 439934451, 844357226, 3424602474, 1934619997

Basic calculations (n = 20731388)

Multiplication

n×y
n×2 41462776
n×3 62194164
n×4 82925552
n×5 103656940

Division

n÷y
n÷2 10365694
n÷3 6910462.6666667
n÷3 5182847
n÷5 4146277.6

Exponentiation

ny
n2 429790448406544
n3 8.91015254461E+21
n4 1.847198295415E+29
n5 3.8294984575187E+36

Nth Root

y√n
2√n 4553.1733988505
3√n 274.71104856179
4√n 67.477206513389
5√n 29.062011879271

Divisors of 20731388

1, 2, 4, 137, 274, 548, 37831, 75662, 151324, 5182847, 10365694, 20731388

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 -20731387
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 20731388 can be divided by 12 positive divisors. The sum of these divisors (counting 20731388) is 1, the average is 0.083333333333333.

Base conversion 20731388

Base System Value
2 Binary 1001111000101010111111100
3 Ternary 1110000021010012
4 Quaternary 1033011113330
5 Quinary 20301401023
6 Senary 2020202352
8 Octal 117052774
10 Decimal 20731388
12 Duodecimal 6b393b8
16 Hexadecimal 13c55fc
20 Vigesimal 69b898
36 Base36 cccfw

Cryptographic Hash Functions

md5 c68bb7b00880d492db56f3bfb2d66842
sha1 499e8bb7279ffce263c7f9fb105890ff333788d1
sha256 4de6fbf99538599a0d98fd125059f301374ae85e31de73f590ca4f6b5d2504d4
sha512 fb07c11b5e0420444d65050508d1d9df6e1bfae577a303808704187fd99aabfab1f8c89e6663351892a4131a4f99af275c3814535da046a61d709b7b7660f066
ripemd-160 375554f44521e25df28e29bf16dae24ff184d00d

20731388 as geometric shapes

Circle

Radius = n
Diameter 41462776
Circumference 130259152.47904
Area 1.3502265152971E+15

Sphere

Radius = n
Volume 3.7322759702015E+22
Surface area 5.4009060611882E+15
Circumference 130259152.47904

Square

Length = n
Perimeter 82925552
Area 429790448406544
Diagonal 29318610.076419

Cube

Length = n
Surface area 2578742690439264
Volume 8.91015254461E+21
Space diagonal 35907817.327424

Equilateral Triangle

Length = n
Perimeter 62194164
Area 1.8610472331199E+14
Altitude 17953908.663712

Triangular Pyramid

Length = n
Surface area 1.8610472331199E+14
Volume 1.0500715476167E+21
Height 9772870.0254729