21490191 (number)

21490191 is an odd 8-digits composite number following 21490190 and preceding 21490192. In scientific notation, it is written as 2.1490191 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 28 positive divisors. There are 13957920 positive integers (up to 21490191) that are relatively prime to 21490191.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety thousand one hundred ninety-one

Notation

Scientific notation 2.1490191 × 10^7
Engineering notation 2.1490191 × 10^6

Prime Factorization of 21490191

Prime Factorization 3 × 3 × 27 × 3 × 41 × 719

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2387799
Product of the distinct prime numbers

The prime factorization of 21490191 is 3 × 3 × 27 × 3 × 41 × 719. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 2, 97, 46, 125, 156, 6027, 6016, 82711, 15888, 959459, 125225, 2114322, 3423477, 89237929, 87853378, 760104094, 744321093, 4871972355, 9858868180

Basic calculations (n = 21490191)

Multiplication

n×y
n×2 42980382
n×3 64470573
n×4 85960764
n×5 107450955

Division

n÷y
n÷2 10745095.5
n÷3 7163397
n÷3 5372547.75
n÷5 4298038.2

Exponentiation

ny
n2 461828309216481
n3 9.9247785742692E+21
n4 2.1328538719375E+29
n5 4.5835437083027E+36

Nth Root

y√n
2√n 4635.7513954051
3√n 278.02259447502
4√n 68.086352490092
5√n 29.271707385961

Divisors of 21490191

1, 3, 9, 27, 41, 81, 123, 243, 369, 719, 729, 1107, 2157, 3321, 6471, 9963, 19413, 29479, 29889, 58239, 88437, 174717, 265311, 524151, 795933, 2387799, 7163397, 21490191

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21490190
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21490191 can be divided by 28 positive divisors. The sum of these divisors (counting 21490191) is 1, the average is 0.035714285714286.

Base conversion 21490191

Base System Value
2 Binary 1010001111110101000001111
3 Ternary 1111102211000000
4 Quaternary 1101332220033
5 Quinary 21000141231
6 Senary 2044335343
8 Octal 121765017
10 Decimal 21490191
12 Duodecimal 7244553
16 Hexadecimal 147ea0f
20 Vigesimal 6e659b
36 Base36 cslxr

Cryptographic Hash Functions

md5 3ce0e52246bad38d7a2c0c24bf08a13e
sha1 2519d74fdfaffad2b63cccabffc76f2ea470560f
sha256 205973d55e8567bf991782c365ae144e698f88e7b2588a102ed8d34ffd4527c8
sha512 bd1d5ebf26adfc0b8da034eeb490fc49f6da284c365836defe995fe7f61c1a005128633fbca6ffd9707b53e6c21b2bbf8825937d0cf7421436a98ed24414e07e
ripemd-160 5657f5b0042ef20b34deabf34083b6b080dd0446

21490191 as geometric shapes

Circle

Radius = n
Diameter 42980382
Circumference 135026852.33968
Area 1.4508764234543E+15

Sphere

Radius = n
Volume 4.1572815276573E+22
Surface area 5.8035056938172E+15
Circumference 135026852.33968

Square

Length = n
Perimeter 85960764
Area 461828309216481
Diagonal 30391719.570188

Cube

Length = n
Surface area 2770969855298886
Volume 9.9247785742692E+21
Space diagonal 37222102.676359

Equilateral Triangle

Length = n
Perimeter 64470573
Area 1.9997752398414E+14
Altitude 18611051.33818

Triangular Pyramid

Length = n
Surface area 1.9997752398414E+14
Volume 1.1696463719401E+21
Height 10130573.190063