21931438 (number)

21931438 is an even 8-digits composite number following 21931437 and preceding 21931439. In scientific notation, it is written as 2.1931438 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 10904280 positive integers (up to 21931438) that are relatively prime to 21931438.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred thirty-one thousand four hundred thirty-eight

Notation

Scientific notation 2.1931438 × 10^7
Engineering notation 2.1931438 × 10^6

Prime Factorization of 21931438

Prime Factorization 2 × 179 × 61261

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21931438
Product of the distinct prime numbers

The prime factorization of 21931438 is 2 × 179 × 61261. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 83, 59, 863, 147, 7644, 4762, 62375, 62468, 473175, 337467, 7318986, 3428022, 33025963, 43233527, 964240881, 108387180, 457208318, 2778060322

Basic calculations (n = 21931438)

Multiplication

n×y
n×2 43862876
n×3 65794314
n×4 87725752
n×5 109657190

Division

n÷y
n÷2 10965719
n÷3 7310479.3333333
n÷3 5482859.5
n÷5 4386287.6

Exponentiation

ny
n2 480987972747844
n3 1.0548757903065E+22
n4 2.3134942992808E+29
n5 5.073825678803E+36

Nth Root

y√n
2√n 4683.1013228415
3√n 279.91254922046
4√n 68.433188752546
5√n 29.390936311927

Divisors of 21931438

1, 2, 179, 358, 61261, 122522, 10965719, 21931438

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21931437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21931438 can be divided by 8 positive divisors. The sum of these divisors (counting 21931438) is 1, the average is 0.125.

Base conversion 21931438

Base System Value
2 Binary 1010011101010010110101110
3 Ternary 1112021020021111
4 Quaternary 1103222112232
5 Quinary 21103301223
6 Senary 2102022234
8 Octal 123522656
10 Decimal 21931438
12 Duodecimal 741797a
16 Hexadecimal 14ea5ae
20 Vigesimal 6h18bi
36 Base36 d22em

Cryptographic Hash Functions

md5 a71745776a3b21fe3fa9f8c1923391d3
sha1 34a8e4e2e3e8812fd2beeddb00788e6c8a1cc4e0
sha256 209b70499e36204c2baa5a60a46375e398683f0aa4e66ef10219b9ef68357485
sha512 1115b3f9bf4b52c5b926cf62cb158377c7957a976fea028b6964ca611b14c15cbe0eb67bba2e838b243d00476b512693e858f300aa4685c0e0a8a08a00017a21
ripemd-160 1f8fc4f9c9d9956c4be1e77ed2419be3a1d9ba18

21931438 as geometric shapes

Circle

Radius = n
Diameter 43862876
Circumference 137799289.00692
Area 1.5110682816497E+15

Sphere

Radius = n
Volume 4.4186533777022E+22
Surface area 6.0442731265987E+15
Circumference 137799289.00692

Square

Length = n
Perimeter 87725752
Area 480987972747844
Diagonal 31015737.061945

Cube

Length = n
Surface area 2885927836487064
Volume 1.0548757903065E+22
Space diagonal 37986364.899047

Equilateral Triangle

Length = n
Perimeter 65794314
Area 2.0827390165721E+14
Altitude 18993182.449523

Triangular Pyramid

Length = n
Surface area 2.0827390165721E+14
Volume 1.2431830410587E+21
Height 10338579.020648