21091385 (number)

21091385 is an odd 8-digits composite number following 21091384 and preceding 21091386. In scientific notation, it is written as 2.1091385 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 14370048 positive integers (up to 21091385) that are relatively prime to 21091385.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1091385 × 10^7
Engineering notation 2.1091385 × 10^6

Prime Factorization of 21091385

Prime Factorization 5 × 7 × 163 × 3697

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21091385
Product of the distinct prime numbers

The prime factorization of 21091385 is 5 × 7 × 163 × 3697. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 6, 59, 67, 579, 642, 2215, 9690, 67591, 11646, 702570, 289891, 7456004, 2360745, 20822346, 94165328, 668548057, 243212684, 8637527232, 5449197115

Basic calculations (n = 21091385)

Multiplication

n×y
n×2 42182770
n×3 63274155
n×4 84365540
n×5 105456925

Division

n÷y
n÷2 10545692.5
n÷3 7030461.6666667
n÷3 5272846.25
n÷5 4218277

Exponentiation

ny
n2 444846521218225
n3 9.3824292449243E+21
n4 1.9788842743996E+29
n5 4.1737410101807E+36

Nth Root

y√n
2√n 4592.5357919128
3√n 276.29203580824
4√n 67.768250618655
5√n 29.162249404769

Divisors of 21091385

1, 5, 7, 35, 163, 815, 1141, 3697, 5705, 18485, 25879, 129395, 602611, 3013055, 4218277, 21091385

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21091384
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21091385 can be divided by 16 positive divisors. The sum of these divisors (counting 21091385) is 1, the average is 0.0625.

Base conversion 21091385

Base System Value
2 Binary 1010000011101010000111001
3 Ternary 1110200112221102
4 Quaternary 1100131100321
5 Quinary 20344411020
6 Senary 2032021145
8 Octal 120352071
10 Decimal 21091385
12 Duodecimal 70917b5
16 Hexadecimal 141d439
20 Vigesimal 6bg895
36 Base36 ck27t

Cryptographic Hash Functions

md5 578a6e82b78a602075fc4e1e888d3ee5
sha1 95fa65b89975770e5fb8be79cf0db9436de093d5
sha256 1a80ae8649ae96d48623aee9b743b7a2b9cd86d237b171d22c15e87cb12b36e6
sha512 25e187f1ff6f4861905471a77ae7ff02e73e20ad2af25ce280f9da760c1453baabf5e668ec74d85566e5c4a2a7acc3d636d4911bb6f979356bcb3ff9f8c2d322
ripemd-160 39213760e338aae5b6595b58a1f2765a0212f12a

21091385 as geometric shapes

Circle

Radius = n
Diameter 42182770
Circumference 132521080.34007
Area 1.3975265630342E+15

Sphere

Radius = n
Volume 3.930102771824E+22
Surface area 5.5901062521366E+15
Circumference 132521080.34007

Square

Length = n
Perimeter 84365540
Area 444846521218225
Diagonal 29827722.716232

Cube

Length = n
Surface area 2669079127309350
Volume 9.3824292449243E+21
Space diagonal 36531350.421996

Equilateral Triangle

Length = n
Perimeter 63274155
Area 1.9262419408006E+14
Altitude 18265675.210998

Triangular Pyramid

Length = n
Surface area 1.9262419408006E+14
Volume 1.1057298905148E+21
Height 9942574.2387442