21081380 (number)

21081380 is an even 8-digits composite number following 21081379 and preceding 21081381. In scientific notation, it is written as 2.1081380 × 10^7. The sum of its digits is 23. It has a total of 6 prime factors and 48 positive divisors. There are 8037120 positive integers (up to 21081380) that are relatively prime to 21081380.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-one thousand three hundred eighty

Notation

Scientific notation 2.1081380 × 10^7
Engineering notation 2.1081380 × 10^6

Prime Factorization of 21081380

Prime Factorization 2 × 2 × 41 × 5 × 47 × 547

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 10540690
Product of the distinct prime numbers

The prime factorization of 21081380 is 2 × 2 × 41 × 5 × 47 × 547. Since it has a total of 6 prime factors.

Most popular turbo-numbers

2, 2, 17, 3, 643, 757, 3502, 1509, 37885, 60450, 640560, 660099, 8063930, 5289291, 33108290, 27611910, 264325304, 759209041, 3702720543, 3496698553

Basic calculations (n = 21081380)

Multiplication

n×y
n×2 42162760
n×3 63244140
n×4 84325520
n×5 105406900

Division

n÷y
n÷2 10540690
n÷3 7027126.6666667
n÷3 5270345
n÷5 4216276

Exponentiation

ny
n2 444424582704400
n3 9.3690835093329E+21
n4 1.9751320971198E+29
n5 4.1638510289579E+36

Nth Root

y√n
2√n 4591.4463952005
3√n 276.24834120609
4√n 67.76021247901
5√n 29.159482173667

Divisors of 21081380

1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 547, 820, 940, 1094, 1927, 2188, 2735, 3854, 5470, 7708, 9635, 10940, 19270, 22427, 25709, 38540, 44854, 51418, 89708, 102836, 112135, 128545, 224270, 257090, 448540, 514180, 1054069, 2108138, 4216276, 5270345, 10540690, 21081380

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21081379
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21081380 can be divided by 48 positive divisors. The sum of these divisors (counting 21081380) is 1, the average is 0.020833333333333.

Base conversion 21081380

Base System Value
2 Binary 1010000011010110100100100
3 Ternary 1110200001012212
4 Quaternary 1100122310210
5 Quinary 20344101010
6 Senary 2031502552
8 Octal 120326444
10 Decimal 21081380
12 Duodecimal 7087a58
16 Hexadecimal 141ad24
20 Vigesimal 6bf390
36 Base36 cjuhw

Cryptographic Hash Functions

md5 9f97ba4953200f4b0308807ed03f4dc4
sha1 02a3697e425da4ddef10f1df360b9e04647d437b
sha256 e0cb03b7d85ee30ec44d068ed2bc2aec1264acbcb34b9c987dce3aa43a64b553
sha512 f8954b696a0bb63afe8c59d2c82ae718ebf77d4afb8d9f1164d68a4af78b6563d07826cc97d73d3bb4b545f1b31ef8e1c577ee5d763d65d3098865b6e868489e
ripemd-160 1581d2fd7cfa6e6fa44d0bb5214b7ed98219389f

21081380 as geometric shapes

Circle

Radius = n
Diameter 42162760
Circumference 132458217.07107
Area 1.3962010040989E+15

Sphere

Radius = n
Volume 3.9245125231719E+22
Surface area 5.5848040163954E+15
Circumference 132458217.07107

Square

Length = n
Perimeter 84325520
Area 444424582704400
Diagonal 29813573.509541

Cube

Length = n
Surface area 2666547496226400
Volume 9.3690835093329E+21
Space diagonal 36514021.253666

Equilateral Triangle

Length = n
Perimeter 63244140
Area 1.9244148934415E+14
Altitude 18257010.626833

Triangular Pyramid

Length = n
Surface area 1.9244148934415E+14
Volume 1.1041570804921E+21
Height 9937857.8365136