20171990 (number)

20171990 is an even 8-digits composite number following 20171989 and preceding 20171991. In scientific notation, it is written as 2.0171990 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 8053920 positive integers (up to 20171990) that are relatively prime to 20171990.

Interesting facts

Basic properties

Name

Name twenty million one hundred seventy-one thousand nine hundred ninety

Notation

Scientific notation 2.0171990 × 10^7
Engineering notation 2.0171990 × 10^6

Prime Factorization of 20171990

Prime Factorization 2 × 5 × 659 × 3061

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20171990
Product of the distinct prime numbers

The prime factorization of 20171990 is 2 × 5 × 659 × 3061. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 22, 36, 530, 465, 9323, 5254, 97599, 94259, 632976, 719813, 4181044, 6395735, 99994302, 55932500, 984801468, 936537620, 3802824209, 8833220499

Basic calculations (n = 20171990)

Multiplication

n×y
n×2 40343980
n×3 60515970
n×4 80687960
n×5 100859950

Division

n÷y
n÷2 10085995
n÷3 6723996.6666667
n÷3 5042997.5
n÷5 4034398

Exponentiation

ny
n2 406909180560100
n3 8.2081679211665E+21
n4 1.6557508122409E+29
n5 3.3399788827016E+36

Nth Root

y√n
2√n 4491.323858285
3√n 272.21762967556
4√n 67.017339982164
5√n 28.903454281534

Divisors of 20171990

1, 2, 5, 10, 659, 1318, 3061, 3295, 6122, 6590, 15305, 30610, 2017199, 4034398, 10085995, 20171990

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 -20171989
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 20171990 can be divided by 16 positive divisors. The sum of these divisors (counting 20171990) is 1, the average is 0.0625.

Base conversion 20171990

Base System Value
2 Binary 1001100111100110011010110
3 Ternary 1101221211202202
4 Quaternary 1030330303112
5 Quinary 20131000430
6 Senary 2000204502
8 Octal 114746326
10 Decimal 20171990
12 Duodecimal 6909732
16 Hexadecimal 133ccd6
20 Vigesimal 6619ja
36 Base36 c0ct2

Cryptographic Hash Functions

md5 a3805c07ab4b5f8ae041e1a4b19f7353
sha1 fa736044d82ff36181f133373c387d4e32d42239
sha256 8d1ca89e05e8d2fd6ea13905caa642319978a4d16465a0bafb82467c3e6d7f52
sha512 2e772657702899203e376ebad5a0f42172f7f241f767a67c0bf043415fb8c041ce4c379be3bdaab7df8a21c40cd3dc023463f1beab82242b0fd1a1302d003803
ripemd-160 1e9bb9b6f41671f13ba10cdf0bb5a7820c84cff5

20171990 as geometric shapes

Circle

Radius = n
Diameter 40343980
Circumference 126744351.18457
Area 1.2783428923259E+15

Sphere

Radius = n
Volume 3.4382293387424E+22
Surface area 5.1133715693034E+15
Circumference 126744351.18457

Square

Length = n
Perimeter 80687960
Area 406909180560100
Diagonal 28527501.838054

Cube

Length = n
Surface area 2441455083360600
Volume 8.2081679211665E+21
Space diagonal 34938911.569771

Equilateral Triangle

Length = n
Perimeter 60515970
Area 1.7619684369908E+14
Altitude 17469455.784886

Triangular Pyramid

Length = n
Surface area 1.7619684369908E+14
Volume 9.6734186636246E+20
Height 9509167.2793515