21390911 (number)

21390911 is an odd 8-digits prime number following 21390910 and preceding 21390912. In scientific notation, it is written as 2.1390911 × 10^7. The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors. There are 21390910 positive integers (up to 21390911) that are relatively prime to 21390911.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred ninety thousand nine hundred eleven

Notation

Scientific notation 2.1390911 × 10^7
Engineering notation 2.1390911 × 10^6

Prime Factorization of 21390911

Prime Factorization 21390911

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21390911
Product of the distinct prime numbers

The prime factorization of 21390911 is 21390911. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21390911)

Multiplication

n×y
n×2 42781822
n×3 64172733
n×4 85563644
n×5 106954555

Division

n÷y
n÷2 10695455.5
n÷3 7130303.6666667
n÷3 5347727.75
n÷5 4278182.2

Exponentiation

ny
n2 457571073409921
n3 9.7878621074861E+21
n4 2.0937128722151E+29
n5 4.4786425709107E+36

Nth Root

y√n
2√n 4625.0309188156
3√n 277.59379887844
4√n 68.00757986295
5√n 29.244611486686

Divisors of 21390911

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21390912
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10695456
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4625.031026923
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999065024
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21390911 can be divided by 2 positive divisors. The sum of these divisors (counting 21390911) is 21390912, the average is 10695456.

Base conversion 21390911

Base System Value
2 Binary 1010001100110011000111111
3 Ternary 1111020202210222
4 Quaternary 1101212120333
5 Quinary 20434002121
6 Senary 2042251555
8 Octal 121463077
10 Decimal 21390911
12 Duodecimal 71b6bbb
16 Hexadecimal 146663f
20 Vigesimal 6ddh5b
36 Base36 cqhbz

Cryptographic Hash Functions

md5 d666ca0f3f8e87ad2fac32a6e6a579f7
sha1 fabc001d9ffc43001c5947dd3c47b32d09b7c837
sha256 d53a3bb0b3890515f0662e43ea83d8589542cbf3813dbf137acdd9b6a310fea4
sha512 78cf66ec2cf96a464219b0b1db5dbad11cf6a6b9f7b87cb80342814ff95f9f1307b99d0c467f0dfae5b711ae17cb0703d97dcd94192603a0875a142fa68c4151
ripemd-160 ad473890055169a1623083d333faf48c76ed1d33

21390911 as geometric shapes

Circle

Radius = n
Diameter 42781822
Circumference 134403057.70239
Area 1.4375019227198E+15

Sphere

Radius = n
Volume 4.0999300921638E+22
Surface area 5.7500076908792E+15
Circumference 134403057.70239

Square

Length = n
Perimeter 85563644
Area 457571073409921
Diagonal 30251316.447716

Cube

Length = n
Surface area 2745426440459526
Volume 9.7878621074861E+21
Space diagonal 37050144.672184

Equilateral Triangle

Length = n
Perimeter 64172733
Area 1.9813408680495E+14
Altitude 18525072.336092

Triangular Pyramid

Length = n
Surface area 1.9813408680495E+14
Volume 1.153510611587E+21
Height 10083772.149239