20001891 (number)

20001891 is an odd 8-digits composite number following 20001890 and preceding 20001892. In scientific notation, it is written as 2.0001891 × 10^7. The sum of its digits is 21. It has a total of 5 prime factors and 32 positive divisors. There are 10287360 positive integers (up to 20001891) that are relatively prime to 20001891.

Interesting facts

Basic properties

Name

Name twenty million one thousand eight hundred ninety-one

Notation

Scientific notation 2.0001891 × 10^7
Engineering notation 2.0001891 × 10^6

Prime Factorization of 20001891

Prime Factorization 3 × 7 × 13 × 41 × 1787

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20001891
Product of the distinct prime numbers

The prime factorization of 20001891 is 3 × 7 × 13 × 41 × 1787. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 43, 61, 831, 67, 9619, 1701, 69419, 91360, 467295, 695916, 8693149, 6202595, 40799329, 3535184, 618853123, 295601753, 1436357507, 1594461185

Basic calculations (n = 20001891)

Multiplication

n×y
n×2 40003782
n×3 60005673
n×4 80007564
n×5 100009455

Division

n÷y
n÷2 10000945.5
n÷3 6667297
n÷3 5000472.75
n÷5 4000378.2

Exponentiation

ny
n2 400075643575881
n3 8.0022694145596E+21
n4 1.6006052058266E+29
n5 3.2015130860975E+36

Nth Root

y√n
2√n 4472.3473702296
3√n 271.4503163294
4√n 66.875611176494
5√n 28.854543726614

Divisors of 20001891

1, 3, 7, 13, 21, 39, 41, 91, 123, 273, 287, 533, 861, 1599, 1787, 3731, 5361, 11193, 12509, 23231, 37527, 69693, 73267, 162617, 219801, 487851, 512869, 952471, 1538607, 2857413, 6667297, 20001891

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 -20001890
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 20001891 can be divided by 32 positive divisors. The sum of these divisors (counting 20001891) is 1, the average is 0.03125.

Base conversion 20001891

Base System Value
2 Binary 1001100010011010001100011
3 Ternary 1101122012102210
4 Quaternary 1030103101203
5 Quinary 20110030031
6 Senary 1552413203
8 Octal 114232143
10 Decimal 20001891
12 Duodecimal 6847203
16 Hexadecimal 1313463
20 Vigesimal 6504eb
36 Base36 bwpk3

Cryptographic Hash Functions

md5 360ffc27bfbf7feea62b3a2ff76a343e
sha1 94d2b2837b65d672e8b4dc5ceb3d564ab46e44aa
sha256 f51cc9428320c4cca1bfa217bfe930c5967174eb5ec7666a58292fbfb9d68fbf
sha512 3f68656ad60c494333acd2f74fac2dda977e56b34977dae2e72519333d8b4c9eba1b51be98301a255667b2ca8a099da62380c05de31d36b5ff277a26961dd95c
ripemd-160 a5e7a730fa837219eef0c2c5c52fce0ee52f9408

20001891 as geometric shapes

Circle

Radius = n
Diameter 40003782
Circumference 125675587.64701
Area 1.2568747027382E+15

Sphere

Radius = n
Volume 3.3519827739769E+22
Surface area 5.0274988109528E+15
Circumference 125675587.64701

Square

Length = n
Perimeter 80007564
Area 400075643575881
Diagonal 28286945.525308

Cube

Length = n
Surface area 2400453861455286
Volume 8.0022694145596E+21
Space diagonal 34644291.459455

Equilateral Triangle

Length = n
Perimeter 60005673
Area 1.7323783538606E+14
Altitude 17322145.729727

Triangular Pyramid

Length = n
Surface area 1.7323783538606E+14
Volume 9.430764946528E+20
Height 9428981.8417695