21491873 (number)

21491873 is an odd 8-digits composite number following 21491872 and preceding 21491874. In scientific notation, it is written as 2.1491873 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 19376784 positive integers (up to 21491873) that are relatively prime to 21491873.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand eight hundred seventy-three

Notation

Scientific notation 2.1491873 × 10^7
Engineering notation 2.1491873 × 10^6

Prime Factorization of 21491873

Prime Factorization 13 × 43 × 38447

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21491873
Product of the distinct prime numbers

The prime factorization of 21491873 is 13 × 43 × 38447. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 2, 72, 98, 66, 698, 4239, 7962, 19048, 77364, 691076, 607154, 9051052, 8039652, 80209078, 33536094, 155686758, 105872179, 3757403573, 6388077067

Basic calculations (n = 21491873)

Multiplication

n×y
n×2 42983746
n×3 64475619
n×4 85967492
n×5 107459365

Division

n÷y
n÷2 10745936.5
n÷3 7163957.6666667
n÷3 5372968.25
n÷5 4298374.6

Exponentiation

ny
n2 461900605048129
n3 9.9271091423175E+21
n4 2.1335216894383E+29
n5 4.5853377192153E+36

Nth Root

y√n
2√n 4635.9328079686
3√n 278.02984773465
4√n 68.08768470119
5√n 29.272165580776

Divisors of 21491873

1, 13, 43, 559, 38447, 499811, 1653221, 21491873

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 -21491872
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 21491873 can be divided by 8 positive divisors. The sum of these divisors (counting 21491873) is 1, the average is 0.125.

Base conversion 21491873

Base System Value
2 Binary 1010001111111000010100001
3 Ternary 1111102220022022
4 Quaternary 1101333002201
5 Quinary 21000214443
6 Senary 2044351225
8 Octal 121770241
10 Decimal 21491873
12 Duodecimal 7245515
16 Hexadecimal 147f0a1
20 Vigesimal 6e69dd
36 Base36 csn8h

Cryptographic Hash Functions

md5 60e52fa1a21f2fcae9eac86f27b47b71
sha1 1300319dceaaeb4eb9154650b53cb2e528e30822
sha256 da640ca7b30988a25b0d102ef1ce52247b49a312c4171200108961475e17b170
sha512 a6ee2a9c1ec8d6318ae9b5a54400e440df21ded0d4c284c35d27afc9d857595a68ed47cff3b8603c2d1e8bc37d78769e2bed6fd770dc687ca9d17776b42e80e1
ripemd-160 3a64fcc89891c100c1d9910247588b1495f2a16f

21491873 as geometric shapes

Circle

Radius = n
Diameter 42983746
Circumference 135037420.65737
Area 1.4511035475079E+15

Sphere

Radius = n
Volume 4.1582577537185E+22
Surface area 5.8044141900315E+15
Circumference 135037420.65737

Square

Length = n
Perimeter 85967492
Area 461900605048129
Diagonal 30394098.2774

Cube

Length = n
Surface area 2771403630288774
Volume 9.9271091423175E+21
Space diagonal 37225015.985818

Equilateral Triangle

Length = n
Perimeter 64475619
Area 2.0000882899754E+14
Altitude 18612507.992909

Triangular Pyramid

Length = n
Surface area 2.0000882899754E+14
Volume 1.1699210320186E+21
Height 10131366.092467