21491188 (number)

21491188 is an even 8-digits composite number following 21491187 and preceding 21491189. In scientific notation, it is written as 2.1491188 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 10585080 positive integers (up to 21491188) that are relatively prime to 21491188.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491188 × 10^7
Engineering notation 2.1491188 × 10^6

Prime Factorization of 21491188

Prime Factorization 2 × 2 × 67 × 80191

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10745594
Product of the distinct prime numbers

The prime factorization of 21491188 is 2 × 2 × 67 × 80191. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 23, 56, 774, 303, 8122, 4221, 22698, 47114, 371742, 48373, 535659, 5901123, 70422061, 74082177, 947382340, 901949765, 5816066476, 8515051671

Basic calculations (n = 21491188)

Multiplication

n×y
n×2 42982376
n×3 64473564
n×4 85964752
n×5 107455940

Division

n÷y
n÷2 10745594
n÷3 7163729.3333333
n÷3 5372797
n÷5 4298237.6

Exponentiation

ny
n2 461871161651344
n3 9.9261599668274E+21
n4 2.1332496996516E+29
n5 4.5846070346156E+36

Nth Root

y√n
2√n 4635.8589279658
3√n 278.02689386663
4√n 68.087142163303
5√n 29.271978982902

Divisors of 21491188

1, 2, 4, 67, 134, 268, 80191, 160382, 320764, 5372797, 10745594, 21491188

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491187
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491188 can be divided by 12 positive divisors. The sum of these divisors (counting 21491188) is 1, the average is 0.083333333333333.

Base conversion 21491188

Base System Value
2 Binary 1010001111110110111110100
3 Ternary 1111102212100221
4 Quaternary 1101332313310
5 Quinary 21000204223
6 Senary 2044344124
8 Octal 121766764
10 Decimal 21491188
12 Duodecimal 7245044
16 Hexadecimal 147edf4
20 Vigesimal 6e67j8
36 Base36 csmpg

Cryptographic Hash Functions

md5 586c45dbf52898700b2bcb734da58743
sha1 5e8f3d81e695d8dba8f7eed4b2c41291b82a6edc
sha256 8138fa7b3e4cca7db869e5633e7dd7b16d91b82478c24f68e8c4701b80578696
sha512 81e2f9d687e4ae7a68bb34b8381a2032967ac6cda1d0d59c93f5c3c9990bd9f7412395b8716da348286135ce300f305c1e08c0e181b913158bc3a7967a87f859
ripemd-160 9f0932fb681af3d74fcad9f952b74ec290c4847d

21491188 as geometric shapes

Circle

Radius = n
Diameter 42982376
Circumference 135033116.67543
Area 1.4510110483488E+15

Sphere

Radius = n
Volume 4.157860164019E+22
Surface area 5.8040441933954E+15
Circumference 135033116.67543

Square

Length = n
Perimeter 85964752
Area 461871161651344
Diagonal 30393129.54111

Cube

Length = n
Surface area 2771226969908064
Volume 9.9261599668274E+21
Space diagonal 37223829.531015

Equilateral Triangle

Length = n
Perimeter 64473564
Area 1.9999607963275E+14
Altitude 18611914.765507

Triangular Pyramid

Length = n
Surface area 1.9999607963275E+14
Volume 1.1698091706144E+21
Height 10131043.18037