21691437 (number)

21691437 is an odd 8-digits composite number following 21691436 and preceding 21691438. In scientific notation, it is written as 2.1691437 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 14460956 positive integers (up to 21691437) that are relatively prime to 21691437.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred ninety-one thousand four hundred thirty-seven

Notation

Scientific notation 2.1691437 × 10^7
Engineering notation 2.1691437 × 10^6

Prime Factorization of 21691437

Prime Factorization 3 × 7230479

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21691437
Product of the distinct prime numbers

The prime factorization of 21691437 is 3 × 7230479. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21691437)

Multiplication

n×y
n×2 43382874
n×3 65074311
n×4 86765748
n×5 108457185

Division

n÷y
n÷2 10845718.5
n÷3 7230479
n÷3 5422859.25
n÷5 4338287.4

Exponentiation

ny
n2 470518439124969
n3 1.0206221079618E+22
n4 2.213876015566E+29
n5 4.802215211746E+36

Nth Root

y√n
2√n 4657.4066818349
3√n 278.88775176532
4√n 68.245195302196
5√n 29.326326456286

Divisors of 21691437

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21691436
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21691437 can be divided by 4 positive divisors. The sum of these divisors (counting 21691437) is 1, the average is 0.25.

Base conversion 21691437

Base System Value
2 Binary 1010010101111110000101101
3 Ternary 1111211001001120
4 Quaternary 1102233300231
5 Quinary 21023111222
6 Senary 2052531153
8 Octal 122576055
10 Decimal 21691437
12 Duodecimal 7320ab9
16 Hexadecimal 14afc2d
20 Vigesimal 6fb8bh
36 Base36 cwx7x

Cryptographic Hash Functions

md5 126aed31c5d4b9955c46577f263febb8
sha1 0d6cb4ed8fea87cb36c81aabbe87ba04bae41978
sha256 67050dc79a9a5ac29993023adbe0a041438d6fa172e3057c1e20088591894477
sha512 877691e7aadfde654b4db9cd6c422b2a6aa62eb6587eb369d81d6a2d72fe880967950c7166ff3747ebe3f9794911b0e0f8881733929569cf79eb341fdd193438
ripemd-160 4a5be241b83d36bcf168f07b86adbc3edeee281c

21691437 as geometric shapes

Circle

Radius = n
Diameter 43382874
Circumference 136291318.25001
Area 1.4781772717335E+15

Sphere

Radius = n
Volume 4.2751718886187E+22
Surface area 5.9127090869342E+15
Circumference 136291318.25001

Square

Length = n
Perimeter 86765748
Area 470518439124969
Diagonal 30676324.392762

Cube

Length = n
Surface area 2823110634749814
Volume 1.0206221079618E+22
Space diagonal 37570670.973179

Equilateral Triangle

Length = n
Perimeter 65074311
Area 2.0374046061561E+14
Altitude 18785335.48659

Triangular Pyramid

Length = n
Surface area 2.0374046061561E+14
Volume 1.2028146892811E+21
Height 10225441.464254