20185438 (number)

20185438 is an even 8-digits composite number following 20185437 and preceding 20185439. In scientific notation, it is written as 2.0185438 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 7985376 positive integers (up to 20185438) that are relatively prime to 20185438.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-five thousand four hundred thirty-eight

Notation

Scientific notation 2.0185438 × 10^7
Engineering notation 2.0185438 × 10^6

Prime Factorization of 20185438

Prime Factorization 2 × 7 × 13 × 110909

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20185438
Product of the distinct prime numbers

The prime factorization of 20185438 is 2 × 7 × 13 × 110909. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 6, 3, 64, 926, 734, 171, 8420, 63454, 94331, 512214, 822955, 6220241, 416754, 47380731, 84639808, 291338663, 699463493, 3160172105, 7251122632

Basic calculations (n = 20185438)

Multiplication

n×y
n×2 40370876
n×3 60556314
n×4 80741752
n×5 100927190

Division

n÷y
n÷2 10092719
n÷3 6728479.3333333
n÷3 5046359.5
n÷5 4037087.6

Exponentiation

ny
n2 407451907251844
n3 8.2245952118138E+21
n4 1.6601705672317E+29
n5 3.3511270054279E+36

Nth Root

y√n
2√n 4492.8207175448
3√n 272.27810907426
4√n 67.028506753059
5√n 28.90730705008

Divisors of 20185438

1, 2, 7, 13, 14, 26, 91, 182, 110909, 221818, 776363, 1441817, 1552726, 2883634, 10092719, 20185438

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 -20185437
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 20185438 can be divided by 16 positive divisors. The sum of these divisors (counting 20185438) is 1, the average is 0.0625.

Base conversion 20185438

Base System Value
2 Binary 1001101000000000101011110
3 Ternary 1101222112012211
4 Quaternary 1031000011132
5 Quinary 20131413223
6 Senary 2000351034
8 Octal 115000536
10 Decimal 20185438
12 Duodecimal 691547a
16 Hexadecimal 134015e
20 Vigesimal 6633bi
36 Base36 c0n6m

Cryptographic Hash Functions

md5 0e495a3a06eaa45a7c6c7a798efdfb8a
sha1 3ec9cb2e7fc7fe6ea62bd7ca2cb4b24d5d01ecc8
sha256 3d37c141388cea02f115bcb31ab7d86399af57c2a21c5ce752d31fab3dd4988f
sha512 995112e2e0d80df8cff761392f38f159b9c11ef2a114b87ed7e6149d1296a5069d8b794e2e4427901d4e01ee6f42c876b466b16b0e31ff99ab9d436f773c3e5b
ripemd-160 154427e03cc964bad0b548f998fd85430b35c751

20185438 as geometric shapes

Circle

Radius = n
Diameter 40370876
Circumference 126828847.46058
Area 1.2800479185135E+15

Sphere

Radius = n
Volume 3.4451103861579E+22
Surface area 5.1201916740542E+15
Circumference 126828847.46058

Square

Length = n
Perimeter 80741752
Area 407451907251844
Diagonal 28546520.182041

Cube

Length = n
Surface area 2444711443511064
Volume 8.2245952118138E+21
Space diagonal 34962204.189032

Equilateral Triangle

Length = n
Perimeter 60556314
Area 1.7643185125026E+14
Altitude 17481102.094516

Triangular Pyramid

Length = n
Surface area 1.7643185125026E+14
Volume 9.6927784113133E+20
Height 9515506.7273471