21897440 (number)

21897440 is an even 8-digits composite number following 21897439 and preceding 21897441. In scientific notation, it is written as 2.1897440 × 10^7. The sum of its digits is 35. It has a total of 7 prime factors and 24 positive divisors. There are 8758912 positive integers (up to 21897440) that are relatively prime to 21897440.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred ninety-seven thousand four hundred forty

Notation

Scientific notation 2.1897440 × 10^7
Engineering notation 2.1897440 × 10^6

Prime Factorization of 21897440

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 136859

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 1368590
Product of the distinct prime numbers

The prime factorization of 21897440 is 2 × 2 × 2 × 2 × 2 × 5 × 136859. Since it has a total of 7 prime factors.

Most popular turbo-numbers

3, 8, 72, 73, 247, 89, 2910, 107, 499, 98005, 933552, 636611, 4690326, 7729202, 65777404, 66665488, 98317263, 233132001, 6855683682, 7103229166

Basic calculations (n = 21897440)

Multiplication

n×y
n×2 43794880
n×3 65692320
n×4 87589760
n×5 109487200

Division

n÷y
n÷2 10948720
n÷3 7299146.6666667
n÷3 5474360
n÷5 4379488

Exponentiation

ny
n2 479497878553600
n3 1.0499776025755E+22
n4 2.299182155374E+29
n5 5.0346203296373E+36

Nth Root

y√n
2√n 4679.4700554657
3√n 279.7678347616
4√n 68.406652128764
5√n 29.381818321288

Divisors of 21897440

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136859, 273718, 547436, 684295, 1094872, 1368590, 2189744, 2737180, 4379488, 5474360, 10948720, 21897440

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21897439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21897440 can be divided by 24 positive divisors. The sum of these divisors (counting 21897440) is 1, the average is 0.041666666666667.

Base conversion 21897440

Base System Value
2 Binary 1010011100010000011100000
3 Ternary 1112012111122022
4 Quaternary 1103202003200
5 Quinary 21101204230
6 Senary 2101201012
8 Octal 123420340
10 Decimal 21897440
12 Duodecimal 7400168
16 Hexadecimal 14e20e0
20 Vigesimal 6gh3c0
36 Base36 d1c68

Cryptographic Hash Functions

md5 e094f14da2625daec5817e58b5f51a4a
sha1 3fd5285b88555b6759fee7fb940f45f941d2137c
sha256 ffb924d56d11eacd9224976cb33b9af758786aafce40e8c95cbd403eb8d2b41b
sha512 f6356904fdeba0f708d7bb9d14a16536f50e8d0ec480ecff9d26f613755c5485851ac3fc0e91ba8adf8dd27cd60bc6a4ca3d28c2c6fe7a0737cab7ad9bbcfe1c
ripemd-160 e8b955b11e9b98ddfe9d279189bd8adf58f8f8e9

21897440 as geometric shapes

Circle

Radius = n
Diameter 43794880
Circumference 137585673.27285
Area 1.5063870126759E+15

Sphere

Radius = n
Volume 4.3981358969132E+22
Surface area 6.0255480507035E+15
Circumference 137585673.27285

Square

Length = n
Perimeter 87589760
Area 479497878553600
Diagonal 30967656.629251

Cube

Length = n
Surface area 2876987271321600
Volume 1.0499776025755E+22
Space diagonal 37927478.635691

Equilateral Triangle

Length = n
Perimeter 65692320
Area 2.0762867194408E+14
Altitude 18963739.317846

Triangular Pyramid

Length = n
Surface area 2.0762867194408E+14
Volume 1.2374104714585E+21
Height 10322552.20975